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A154677 as a simple table

n a(n)
0 1
1 1
2 3
3 13
4 70
5 440
6 3116
7 24274
8 204407
9 1836339
10 17425275
11 173329307
12 1796783304
13 19323703019
14 214843877103
15 2462522274426
16 29032815570544
17 351447240945518
18 4361579736404011
19 55424256247911490
20 720399315622779670
21 9569215299494074698
22 129799982362958621827

[1,1,3,13,70,440,3116,24274,204407,1836339,
 17425275,173329307,1796783304,19323703019,
 214843877103,2462522274426,29032815570544,
 351447240945518,4361579736404011,
 55424256247911490,720399315622779670,
 9569215299494074698,129799982362958621827]

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Last modified April 16 12:05 EDT 2024. Contains 371711 sequences. (Running on oeis4.)