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A221516 as a simple table

n a(n)
1 0
2 3
3 30
4 130
5 381
6 884
7 1765
8 3174
9 5285
10 8296
11 12429
12 17930
13 25069
14 34140
15 45461
16 59374
17 76245
18 96464
19 120445
20 148626
21 181469
22 219460
23 263109
24 312950
25 369541
26 433464
27 505325
28 585754
29 675405
30 774956
31 885109
32 1006590
33 1140149
34 1286560

[0,3,30,130,381,884,1765,3174,5285,8296,12429,
 17930,25069,34140,45461,59374,76245,96464,120445,
 148626,181469,219460,263109,312950,369541,433464,
 505325,585754,675405,774956,885109,1006590,
 1140149,1286560]

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Last modified February 17 21:46 EST 2020. Contains 332006 sequences. (Running on oeis4.)