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A244756 as a simple table

n a(n)
0 1
1 4
2 20
3 136
4 1424
5 25504
6 831680
7 49526656
8 5359464704
9 1033951896064
10 354410768092160
11 213011725510260736
12 224795751647646224384
13 412813583857427719266304
14 1323683536183041967893954560
15 7361415226356149639592083685376
16 71294465534894253722438522191806464

[1,4,20,136,1424,25504,831680,49526656,5359464704,
 1033951896064,354410768092160,213011725510260736,
 224795751647646224384,412813583857427719266304,
 1323683536183041967893954560,
 7361415226356149639592083685376,
 71294465534894253722438522191806464]

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Last modified April 19 11:31 EDT 2024. Contains 371792 sequences. (Running on oeis4.)