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A080871 as a simple table

n a(n)
0 1
1 1
2 4
3 7
4 31
5 55
6 244
7 433
8 1921
9 3409
10 15124
11 26839
12 119071
13 211303
14 937444
15 1663585
16 7380481
17 13097377
18 58106404
19 103115431
20 457470751
21 811826071
22 3601659604
23 6391493137
24 28355806081
25 50320119025
26 223244789044

[1,1,4,7,31,55,244,433,1921,3409,15124,26839,
 119071,211303,937444,1663585,7380481,13097377,
 58106404,103115431,457470751,811826071,3601659604,
 6391493137,28355806081,50320119025,223244789044]

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Last modified May 13 16:16 EDT 2024. Contains 372522 sequences. (Running on oeis4.)