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A245580 as a simple table

n a(n)
1 3
2 18
3 76
4 322
5 1364
6 5778
7 24476
8 103682
9 439204
10 1860498
11 7881196
12 33385282
13 141422324
14 599074578
15 2537720636
16 10749957122
17 45537549124
18 192900153618
19 817138163596
20 3461452808002
21 14662949395604
22 62113250390418
23 263115950957276
24 1114577054219522

[3,18,76,322,1364,5778,24476,103682,439204,
 1860498,7881196,33385282,141422324,599074578,
 2537720636,10749957122,45537549124,192900153618,
 817138163596,3461452808002,14662949395604,
 62113250390418,263115950957276,1114577054219522]

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Last modified May 7 20:13 EDT 2024. Contains 372317 sequences. (Running on oeis4.)