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A278405 as a simple table

n a(n)
0 1
1 1
2 2
3 19
4 110
5 476
6 2477
7 15093
8 86830
9 485290
10 2826902
11 16857116
12 100034453
13 594833357
14 3574477090
15 21611465819
16 130955824174
17 796195223398
18 4860425688176
19 29760574848750
20 182655048136510
21 1123720751229858
22 6929124085148938
23 42811398244528788

[1,1,2,19,110,476,2477,15093,86830,485290,2826902,
 16857116,100034453,594833357,3574477090,
 21611465819,130955824174,796195223398,
 4860425688176,29760574848750,182655048136510,
 1123720751229858,6929124085148938,
 42811398244528788]

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Last modified May 31 19:33 EDT 2024. Contains 373003 sequences. (Running on oeis4.)