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A050405 as a simple table

n a(n)
0 1
1 15
2 84
3 308
4 882
5 2142
6 4620
7 9108
8 16731
9 29029
10 48048
11 76440
12 117572
13 175644
14 255816
15 364344
16 508725
17 697851
18 942172
19 1253868
20 1647030
21 2137850
22 2744820
23 3488940
24 4393935
25 5486481
26 6796440
27 8357104

[1,15,84,308,882,2142,4620,9108,16731,29029,48048,
 76440,117572,175644,255816,364344,508725,697851,
 942172,1253868,1647030,2137850,2744820,3488940,
 4393935,5486481,6796440,8357104]

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Last modified October 23 05:46 EDT 2018. Contains 316519 sequences. (Running on oeis4.)