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A001570 as a simple table

n a(n)
1 1
2 13
3 181
4 2521
5 35113
6 489061
7 6811741
8 94875313
9 1321442641
10 18405321661
11 256353060613
12 3570537526921
13 49731172316281
14 692665874901013
15 9647591076297901
16 134373609193269601
17 1871582937629476513
18 26067787517619401581
19 363077442309042145621

[1,13,181,2521,35113,489061,6811741,94875313,
 1321442641,18405321661,256353060613,3570537526921,
 49731172316281,692665874901013,9647591076297901,
 134373609193269601,1871582937629476513,
 26067787517619401581,363077442309042145621]

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Last modified March 28 21:57 EDT 2024. Contains 371254 sequences. (Running on oeis4.)