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A145953 as a simple table

n a(n)
1 1
2 1
3 1
4 1
5 7
6 11
7 159
8 327
9 5133
10 13861
11 849385
12 3108015
13 457381857
14 2235253839
15 607242639437
16 3907846853149
17 2764340116761305
18 23642760363071615
19 40211844595990066697
20 457112748895519083981
21 1725707575657931227023395

[1,1,1,1,7,11,159,327,5133,13861,849385,3108015,
 457381857,2235253839,607242639437,3907846853149,
 2764340116761305,23642760363071615,
 40211844595990066697,457112748895519083981,
 1725707575657931227023395]

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Last modified March 28 14:38 EDT 2024. Contains 371254 sequences. (Running on oeis4.)