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A271213 as a simple table

n a(n)
0 1
1 1
2 3
3 14
4 104
5 976
6 11616
7 161472
8 2582016
9 46451712
10 929003520
11 20437463040
12 490498375680
13 12752940072960
14 357082301399040
15 10712468463943680
16 342798990185594880
17 11655165645170933760
18 419585963202371911680
19 15944266600833991311360
20 637770664032408384307200

[1,1,3,14,104,976,11616,161472,2582016,46451712,
 929003520,20437463040,490498375680,12752940072960,
 357082301399040,10712468463943680,
 342798990185594880,11655165645170933760,
 419585963202371911680,15944266600833991311360,
 637770664032408384307200]

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Last modified May 21 22:16 EDT 2024. Contains 372741 sequences. (Running on oeis4.)