A112997 - OEIS

A112997 as a simple table

n	a(n)
1	1
2	2
3	4
4	7
5	13
6	20
7	30
8	41
9	55
10	74
11	94
12	119
13	147
14	176
15	208
16	245
17	287
18	330
19	378
20	429
21	481
22	538
23	598
24	663
25	735
26	810
27	886
28	965
29	1045
30	1128
31	1224
32	1323
33	1427
34	1532
35	1646
36	1761
37	1881
38	2006
39	2134
40	2267
41	2405
42	2544
43	2692
44	2841
45	2993
46	3146
47	3310
48	3485
49	3663
50	3842

[1,2,4,7,13,20,30,41,55,74,94,119,147,176,208,245, 287,330,378,429,481,538,598,663,735,810,886,965, 1045,1128,1224,1323,1427,1532,1646,1761,1881,2006, 2134,2267,2405,2544,2692,2841,2993,3146,3310,3485, 3663,3842]