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A265953 as a simple table

n a(n)
0 1
1 1
2 6
3 39
4 328
5 3305
6 39396
7 536053
8 8210784
9 139670721
10 2612934820
11 53260680341
12 1175587507392
13 27929705129521
14 710678763809028
15 19284199100275845
16 555961318128936256
17 16972543570002866945
18 547046699544108738756
19 18566047855851466092949

[1,1,6,39,328,3305,39396,536053,8210784,139670721,
 2612934820,53260680341,1175587507392,
 27929705129521,710678763809028,19284199100275845,
 555961318128936256,16972543570002866945,
 547046699544108738756,18566047855851466092949]

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Last modified December 2 02:12 EST 2021. Contains 349435 sequences. (Running on oeis4.)