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A222269 as a simple table

n a(n)
1 1
2 0
3 0
4 3
5 4
6 8
7 10
8 55
9 72
10 294
11 378
12 1883
13 2440
14 11920
15 15408
16 78255
17 101330
18 517050
19 669658
20 3451712
21 4473984
22 23156964
23 30030364
24 156076271
25 202510224
26 1055435486
27 1370043450
28 7157673375
29 9295027344
30 48656943008
31 63208940422
32 331450961443

[1,0,0,3,4,8,10,55,72,294,378,1883,2440,11920,
 15408,78255,101330,517050,669658,3451712,4473984,
 23156964,30030364,156076271,202510224,1055435486,
 1370043450,7157673375,9295027344,48656943008,
 63208940422,331450961443]

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Last modified May 14 17:50 EDT 2024. Contains 372533 sequences. (Running on oeis4.)