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A316310 as a simple table

n a(n)
1 21
2 127
3 168
4 1046
5 4583
6 17487
7 96175
8 534083
9 2689151
10 15357780
11 89959730
12 517714307
13 3063955854
14 18343096898
15 109721387508
16 660612374692
17 3991562407488
18 24145509389500
19 146334159352398
20 887846840631706

[21,127,168,1046,4583,17487,96175,534083,2689151,
 15357780,89959730,517714307,3063955854,
 18343096898,109721387508,660612374692,
 3991562407488,24145509389500,146334159352398,
 887846840631706]

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Last modified December 4 16:41 EST 2022. Contains 358563 sequences. (Running on oeis4.)