A222404 - OEIS

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A222404 as a triangular array

											0
										2		2
									6		4		6
								12		10		10		12
							20		22		20		22		20
						30		42		42		42		42		30
					42		72		84		84		84		72		42
				56		114		156		168		168		156		114		56
			72		170		270		324		336		324		270		170		72
		90		242		440		594		660		660		594		440		242		90
	110		332		682		1034		1254		1320		1254		1034		682		332		110

A222404 as a square array

0	2	6	12	20	30	42	56	72	90	110
2	4	10	22	42	72	114	170	242	332
6	10	20	42	84	156	270	440	682
12	22	42	84	168	324	594	1034
20	42	84	168	336	660	1254
30	72	156	324	660	1320
42	114	270	594	1254
56	170	440	1034
72	242	682
90	332
110

A222404 as an upper right triangle

0	2	6	12	20	30	42	56	72	90	110
	2	4	10	22	42	72	114	170	242	332
		6	10	20	42	84	156	270	440	682
			12	22	42	84	168	324	594	1034
				20	42	84	168	336	660	1254
					30	72	156	324	660	1320
						42	114	270	594	1254
							56	170	440	1034
								72	242	682
									90	332
										110