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A156403 as a simple table

n a(n)
0 1
1 312
2 13290
3 156128
4 709332
5 1578064
6 4220548
7 17605696
8 42440517
9 56568904
10 102471151
11 332810880
12 624439948
13 662224128
14 977782336
15 2727888448
16 4701559354
17 4686068520
18 5468265896
19 13526490400
20 23873894500
21 23882769984
22 23258023832

[1,312,13290,156128,709332,1578064,4220548,
 17605696,42440517,56568904,102471151,332810880,
 624439948,662224128,977782336,2727888448,
 4701559354,4686068520,5468265896,13526490400,
 23873894500,23882769984,23258023832]

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Last modified September 18 10:24 EDT 2024. Contains 375999 sequences. (Running on oeis4.)