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A113920 as a simple table

n a(n)
-3 1
-2 0
-1 0
0 3
1 3
2 3
3 6
4 9
5 12
6 16
7 21
8 27
9 34
10 42
11 51
12 61
13 72
14 84
15 97
16 111
17 126
18 142
19 159
20 177
21 196
22 216
23 237
24 259
25 282
26 306
27 331
28 357
29 384
30 412
31 441
32 471
33 502
34 534
35 567
36 601
37 636
38 672
39 709
40 747
41 786
42 826
43 867
44 909
45 952
46 996
47 1041
48 1087
49 1134
50 1182
51 1231
52 1281
53 1332
54 1384
55 1437

[1,0,0,3,3,3,6,9,12,16,21,27,34,42,51,61,72,84,97,
 111,126,142,159,177,196,216,237,259,282,306,331,
 357,384,412,441,471,502,534,567,601,636,672,709,
 747,786,826,867,909,952,996,1041,1087,1134,1182,
 1231,1281,1332,1384,1437]

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Last modified September 28 11:24 EDT 2020. Contains 337393 sequences. (Running on oeis4.)