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A240762 as a simple table

n a(n)
1 4
2 12
3 19
4 142
5 553
6 4112
7 18373
8 131958
9 625820
10 4472258
11 21760942
12 154039075
13 763999159
14 5342021291
15 26913960199
16 185826785482
17 949177894331
18 6473768540990
19 33478372193270
20 225722723781992
21 1180496482754391

[4,12,19,142,553,4112,18373,131958,625820,4472258,
 21760942,154039075,763999159,5342021291,
 26913960199,185826785482,949177894331,
 6473768540990,33478372193270,225722723781992,
 1180496482754391]

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Last modified January 18 15:36 EST 2022. Contains 350455 sequences. (Running on oeis4.)