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A071816 as a simple table

n a(n)
1 1
2 20
3 141
4 580
5 1751
6 4332
7 9331
8 18152
9 32661
10 55252
11 88913
12 137292
13 204763
14 296492
15 418503
16 577744
17 782153
18 1040724
19 1363573
20 1762004
21 2248575
22 2837164
23 3543035
24 4382904
25 5375005
26 6539156
27 7896825
28 9471196
29 11287235
30 13371756

[1,20,141,580,1751,4332,9331,18152,32661,55252,
 88913,137292,204763,296492,418503,577744,782153,
 1040724,1363573,1762004,2248575,2837164,3543035,
 4382904,5375005,6539156,7896825,9471196,11287235,
 13371756]

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Last modified April 23 14:32 EDT 2024. Contains 371914 sequences. (Running on oeis4.)