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A031972 formatted as a simple table:

n a(n)
1 1
2 6
3 39
4 340
5 3905
6 55986
7 960799
8 19173960
9 435848049
10 11111111110
11 313842837671
12 9726655034460
13 328114698808273
14 11966776581370170
15 469172025408063615
16 19676527011956855056
17 878942778254232811937

[1,6,39,340,3905,55986,960799,19173960,435848049,
 11111111110,313842837671,9726655034460,
 328114698808273,11966776581370170,
 469172025408063615,19676527011956855056,
 878942778254232811937]

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Last modified December 2 11:54 EST 2009. Contains 167921 sequences.


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