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A255373 as a simple table

n a(n)
0 0
1 0
2 0
3 1
4 18
5 261
6 3420
7 42291
8 503757
9 5845383
10 66525399
11 745904151
12 8264888316
13 90700808526
14 987461965116
15 10678505242392
16 114817381566435
17 1228431892382460
18 13086248073415290
19 138875261344657416
20 1468815363559657773
21 15488131104999233505

[0,0,0,1,18,261,3420,42291,503757,5845383,
 66525399,745904151,8264888316,90700808526,
 987461965116,10678505242392,114817381566435,
 1228431892382460,13086248073415290,
 138875261344657416,1468815363559657773,
 15488131104999233505]

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Last modified May 20 06:19 EDT 2024. Contains 372703 sequences. (Running on oeis4.)