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A252215 as a simple table

n a(n)
1 3147
2 2836
3 10486
4 44776
5 188866
6 801122
7 3410786
8 14539238
9 61939226
10 263654432
11 1122558798
12 4780929468
13 20360099382
14 86698049968
15 369189620578
16 1572170465502
17 6694947958402
18 28509673198294
19 121405330624876

[3147,2836,10486,44776,188866,801122,3410786,
 14539238,61939226,263654432,1122558798,4780929468,
 20360099382,86698049968,369189620578,
 1572170465502,6694947958402,28509673198294,
 121405330624876]

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Last modified December 5 22:21 EST 2021. Contains 349558 sequences. (Running on oeis4.)