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A299076 as a simple table

n a(n)
1 4
2 31
3 163
4 927
5 5331
6 30535
7 175286
8 1006611
9 5780036
10 33191586
11 190603429
12 1094541845
13 6285428287
14 36094210900
15 207271793585
16 1190262866608
17 6835110967356
18 39250776619893
19 225398457372461
20 1294355653107337

[4,31,163,927,5331,30535,175286,1006611,5780036,
 33191586,190603429,1094541845,6285428287,
 36094210900,207271793585,1190262866608,
 6835110967356,39250776619893,225398457372461,
 1294355653107337]

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Last modified December 3 22:01 EST 2023. Contains 367540 sequences. (Running on oeis4.)