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A127131 as a simple table

n a(n)
0 1
1 1
2 4
3 23
4 175
5 1650
6 18451
7 237703
8 3457763
9 55967155
10 996755108
11 19360232181
12 407152004331
13 9215091412811
14 223307281633261
15 5768104533416742
16 158197552561322216
17 4591028199312877166
18 140551293414196198297

[1,1,4,23,175,1650,18451,237703,3457763,55967155,
 996755108,19360232181,407152004331,9215091412811,
 223307281633261,5768104533416742,
 158197552561322216,4591028199312877166,
 140551293414196198297]

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Last modified March 29 04:59 EDT 2024. Contains 371264 sequences. (Running on oeis4.)