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A291815 as a simple table

n a(n)
1 1
2 1
3 9
4 109
5 1569
6 25481
7 454105
8 8730373
9 178996865
10 3881556561
11 88477557289
12 2109927671453
13 52443846331297
14 1354646602217945
15 36275862587452281
16 1005099719255707829
17 28765965099599741953
18 849204340574458575777
19 25827102287376124267593
20 808349897942417046805197
21 26011340193853765710238241
22 859773626049480606121078057
23 29168437337569276216572259097

[1,1,9,109,1569,25481,454105,8730373,178996865,
 3881556561,88477557289,2109927671453,
 52443846331297,1354646602217945,36275862587452281,
 1005099719255707829,28765965099599741953,
 849204340574458575777,25827102287376124267593,
 808349897942417046805197,
 26011340193853765710238241,
 859773626049480606121078057,
 29168437337569276216572259097]

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Last modified April 23 23:26 EDT 2024. Contains 371917 sequences. (Running on oeis4.)