A034956 - OEIS

A034956 as a simple table

n	a(n)
1	3
2	12
3	40
4	98
5	253
6	455
7	850
8	1292
9	2047
10	3335
11	4495
12	6623
13	8938
14	11180
15	14335
16	18815
17	24249
18	28731
19	35845
20	42884
21	49348
22	59408
23	69139
24	81791
25	98164
26	112211
27	124939
28	141026
29	155434
30	173681
31	210439
32	233966
33	263040
34	286062
35	328098
36	355152
37	393442
38	434558
39	472777

[3,12,40,98,253,455,850,1292,2047,3335,4495,6623, 8938,11180,14335,18815,24249,28731,35845,42884, 49348,59408,69139,81791,98164,112211,124939, 141026,155434,173681,210439,233966,263040,286062, 328098,355152,393442,434558,472777]

[3,12,40,98,253,455,850,1292,2047,3335,4495,6623,
 8938,11180,14335,18815,24249,28731,35845,42884,
 49348,59408,69139,81791,98164,112211,124939,
 141026,155434,173681,210439,233966,263040,286062,
 328098,355152,393442,434558,472777]