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A254224 as a simple table

n a(n)
1 0
2 2
3 15
4 383
5 633
6 6490
7 18214
8 60168
9 97089
10 296955
11 420163
12 1046085
13 1799943
14 3545675
15 4664339
16 9251052
17 11630683
18 20703803
19 29730723
20 47075466
21 56991009
22 93151404
23 122440340
24 182865306
25 239287220
26 341720757
27 401640735
28 596658745

[0,2,15,383,633,6490,18214,60168,97089,296955,
 420163,1046085,1799943,3545675,4664339,9251052,
 11630683,20703803,29730723,47075466,56991009,
 93151404,122440340,182865306,239287220,341720757,
 401640735,596658745]

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Last modified June 24 20:41 EDT 2021. Contains 345425 sequences. (Running on oeis4.)