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A267847 as a simple table

n a(n)
0 1
1 4
2 26
3 122
4 506
5 2042
6 8186
7 32762
8 131066
9 524282
10 2097146
11 8388602
12 33554426
13 134217722
14 536870906
15 2147483642
16 8589934586
17 34359738362
18 137438953466
19 549755813882
20 2199023255546
21 8796093022202
22 35184372088826
23 140737488355322
24 562949953421306

[1,4,26,122,506,2042,8186,32762,131066,524282,
 2097146,8388602,33554426,134217722,536870906,
 2147483642,8589934586,34359738362,137438953466,
 549755813882,2199023255546,8796093022202,
 35184372088826,140737488355322,562949953421306]

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Last modified April 23 23:26 EDT 2024. Contains 371917 sequences. (Running on oeis4.)