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A305956 as a simple table

n a(n)
1 1
2 25
3 132
4 919
5 6030
6 39985
7 264680
8 1752681
9 11604776
10 76839977
11 508784004
12 3368840487
13 22306294686
14 147697925509
15 977960616520
16 6475425877913
17 42876103097980
18 283897963371645
19 1879789621111676
20 12446757199974599

[1,25,132,919,6030,39985,264680,1752681,11604776,
 76839977,508784004,3368840487,22306294686,
 147697925509,977960616520,6475425877913,
 42876103097980,283897963371645,1879789621111676,
 12446757199974599]

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Last modified December 2 13:44 EST 2022. Contains 358510 sequences. (Running on oeis4.)