A026931 - OEIS

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A026931 as a triangular array

											1
										0		1
									1		1		2
								0		1		1		2
							1		2		3		3		4
						0		2		3		4		4		5
					1		2		5		6		7		7		8
				0		2		4		7		8		9		9		10
			1		3		7		10		13		14		15		15		16
		0		3		6		11		14		17		18		19		19		20
	1		3		9		14		20		23		26		27		28		28		29
0		3		8		16		22		28		31		34		35		36

A026931 as a square array

1	0	1	0	1	0	1	0	1	0	1	0
1	1	1	2	2	2	2	3	3	3	3
2	1	3	3	5	4	7	6	9	8
2	3	4	6	7	10	11	14	16
4	4	7	8	13	14	20	22
5	7	9	14	17	23	28
8	9	15	18	26	31
10	15	19	27	34
16	19	28	35
20	28	36
29

A026931 as an upper right triangle

1	0	1	0	1	0	1	0	1	0	1	0
	1	1	1	2	2	2	2	3	3	3	3
		2	1	3	3	5	4	7	6	9	8
			2	3	4	6	7	10	11	14	16
				4	4	7	8	13	14	20	22
					5	7	9	14	17	23	28
						8	9	15	18	26	31
							10	15	19	27	34
								16	19	28	35
									20	28	36
										29

											1
										0		1
									1		1		2
								0		1		1		2
							1		2		3		3		4
						0		2		3		4		4		5
					1		2		5		6		7		7		8
				0		2		4		7		8		9		9		10
			1		3		7		10		13		14		15		15		16
		0		3		6		11		14		17		18		19		19		20
	1		3		9		14		20		23		26		27		28		28		29
0		3		8		16		22		28		31		34		35		36

1	0	1	0	1	0	1	0	1	0	1	0
1	1	1	2	2	2	2	3	3	3	3
2	1	3	3	5	4	7	6	9	8
2	3	4	6	7	10	11	14	16
4	4	7	8	13	14	20	22
5	7	9	14	17	23	28
8	9	15	18	26	31
10	15	19	27	34
16	19	28	35
20	28	36
29

1	0	1	0	1	0	1	0	1	0	1	0
	1	1	1	2	2	2	2	3	3	3	3
		2	1	3	3	5	4	7	6	9	8
			2	3	4	6	7	10	11	14	16
				4	4	7	8	13	14	20	22
					5	7	9	14	17	23	28
						8	9	15	18	26	31
							10	15	19	27	34
								16	19	28	35
									20	28	36
										29

											1
										0		1
									1		1		2
								0		1		1		2
							1		2		3		3		4
						0		2		3		4		4		5
					1		2		5		6		7		7		8
				0		2		4		7		8		9		9		10
			1		3		7		10		13		14		15		15		16
		0		3		6		11		14		17		18		19		19		20
	1		3		9		14		20		23		26		27		28		28		29
0		3		8		16		22		28		31		34		35		36

1	0	1	0	1	0	1	0	1	0	1	0
1	1	1	2	2	2	2	3	3	3	3
2	1	3	3	5	4	7	6	9	8
2	3	4	6	7	10	11	14	16
4	4	7	8	13	14	20	22
5	7	9	14	17	23	28
8	9	15	18	26	31
10	15	19	27	34
16	19	28	35
20	28	36
29

1	0	1	0	1	0	1	0	1	0	1	0
	1	1	1	2	2	2	2	3	3	3	3
		2	1	3	3	5	4	7	6	9	8
			2	3	4	6	7	10	11	14	16
				4	4	7	8	13	14	20	22
					5	7	9	14	17	23	28
						8	9	15	18	26	31
							10	15	19	27	34
								16	19	28	35
									20	28	36
										29

											1
										0		1
									1		1		2
								0		1		1		2
							1		2		3		3		4
						0		2		3		4		4		5
					1		2		5		6		7		7		8
				0		2		4		7		8		9		9		10
			1		3		7		10		13		14		15		15		16
		0		3		6		11		14		17		18		19		19		20
	1		3		9		14		20		23		26		27		28		28		29
0		3		8		16		22		28		31		34		35		36

1	0	1	0	1	0	1	0	1	0	1	0
1	1	1	2	2	2	2	3	3	3	3
2	1	3	3	5	4	7	6	9	8
2	3	4	6	7	10	11	14	16
4	4	7	8	13	14	20	22
5	7	9	14	17	23	28
8	9	15	18	26	31
10	15	19	27	34
16	19	28	35
20	28	36
29

1	0	1	0	1	0	1	0	1	0	1	0
	1	1	1	2	2	2	2	3	3	3	3
		2	1	3	3	5	4	7	6	9	8
			2	3	4	6	7	10	11	14	16
				4	4	7	8	13	14	20	22
					5	7	9	14	17	23	28
						8	9	15	18	26	31
							10	15	19	27	34
								16	19	28	35
									20	28	36
										29