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A219850 as a simple table

n a(n)
1 21
2 86
3 1437
4 23946
5 328442
6 4032388
7 47321720
8 539690445
9 5969586828
10 63786858888
11 657096362962
12 6521386141300
13 62352002779696
14 574621820954426
15 5109329663976670
16 43890104602738098
17 364784311925241845

[21,86,1437,23946,328442,4032388,47321720,
 539690445,5969586828,63786858888,657096362962,
 6521386141300,62352002779696,574621820954426,
 5109329663976670,43890104602738098,
 364784311925241845]

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Last modified May 17 12:55 EDT 2021. Contains 343971 sequences. (Running on oeis4.)