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A249593 as a simple table

n a(n)
0 1
1 1
2 9
3 251
4 16496
5 2083824
6 453803984
7 156304214576
8 80272385155584
9 58631012094472704
10 58713787327403063808
11 78225670182020153384448
12 135277046518915274471718912
13 297374407080303931562525442048
14 816367902369725640298981464096768

[1,1,9,251,16496,2083824,453803984,156304214576,
 80272385155584,58631012094472704,
 58713787327403063808,78225670182020153384448,
 135277046518915274471718912,
 297374407080303931562525442048,
 816367902369725640298981464096768]

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Last modified May 13 05:55 EDT 2024. Contains 372498 sequences. (Running on oeis4.)