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A011905 as a simple table

n a(n)
0 0
1 0
2 0
3 0
4 1
5 2
6 5
7 9
8 14
9 21
10 31
11 43
12 57
13 74
14 94
15 118
16 146
17 177
18 212
19 252
20 297
21 346
22 401
23 462
24 528
25 600
26 678
27 763
28 854
29 953
30 1059
31 1172
32 1293
33 1423
34 1561
35 1707
36 1862
37 2026
38 2200
39 2384
40 2577
41 2780
42 2994
43 3219

[0,0,0,0,1,2,5,9,14,21,31,43,57,74,94,118,146,177,
 212,252,297,346,401,462,528,600,678,763,854,953,
 1059,1172,1293,1423,1561,1707,1862,2026,2200,2384,
 2577,2780,2994,3219]

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Last modified April 24 07:50 EDT 2024. Contains 371922 sequences. (Running on oeis4.)