A263457 - OEIS

A263457 as a simple table

n	a(n)
1	1
2	2
3	5
4	15
5	20
6	26
7	55
8	68
9	92
10	108
11	150
12	156
13	336
14	346
15	364
16	423
17	563
18	586
19	682
20	798
21	866
22	951
23	1194
24	1734
25	1888
26	2790
27	3102
28	3150
29	3506
30	4210
31	4611
32	5820
33	6766
34	6943
35	7665
36	7701
37	7888
38	8734
39	8772
40	9410
41	10114
42	10839
43	10969
44	11014
45	11453
46	11630
47	11947
48	12357

[1,2,5,15,20,26,55,68,92,108,150,156,336,346,364, 423,563,586,682,798,866,951,1194,1734,1888,2790, 3102,3150,3506,4210,4611,5820,6766,6943,7665,7701, 7888,8734,8772,9410,10114,10839,10969,11014,11453, 11630,11947,12357]

[1,2,5,15,20,26,55,68,92,108,150,156,336,346,364,
 423,563,586,682,798,866,951,1194,1734,1888,2790,
 3102,3150,3506,4210,4611,5820,6766,6943,7665,7701,
 7888,8734,8772,9410,10114,10839,10969,11014,11453,
 11630,11947,12357]