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A187864 as a simple table

n a(n)
1 0
2 0
3 414
4 124880
5 2090520
6 9934272
7 29607932
8 65963326
9 123580937
10 204771252
11 310971475
12 441931786
13 597915172
14 777662238
15 981570648
16 1208872830
17 1459728029
18 1734003242
19 2031698469
20 2352813710
21 2697348965
22 3065304234
23 3456679517

[0,0,414,124880,2090520,9934272,29607932,65963326,
 123580937,204771252,310971475,441931786,597915172,
 777662238,981570648,1208872830,1459728029,
 1734003242,2031698469,2352813710,2697348965,
 3065304234,3456679517]

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Last modified June 18 08:27 EDT 2024. Contains 373472 sequences. (Running on oeis4.)