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A061696 as a simple table

n a(n)
0 1
1 0
2 1
3 1
4 19
5 101
6 1776
7 23717
8 515971
9 11893597
10 346475728
11 11497161545
12 444592761746
13 19536147771219
14 970739908493421
15 54010183143383066
16 3341831947578263267
17 228462339968313577341
18 17160142419913160027448
19 1409008382280004776187961

[1,0,1,1,19,101,1776,23717,515971,11893597,
 346475728,11497161545,444592761746,19536147771219,
 970739908493421,54010183143383066,
 3341831947578263267,228462339968313577341,
 17160142419913160027448,1409008382280004776187961]

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Last modified May 18 15:59 EDT 2024. Contains 372664 sequences. (Running on oeis4.)