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A277104 as a simple table

n a(n)
1 12
2 66
3 228
4 714
5 2172
6 6546
7 19668
8 59034
9 177132
10 531426
11 1594308
12 4782954
13 14348892
14 43046706
15 129140148
16 387420474
17 1162261452
18 3486784386
19 10460353188
20 31381059594
21 94143178812
22 282429536466
23 847288609428
24 2541865828314
25 7625597484972
26 22876792454946

[12,66,228,714,2172,6546,19668,59034,177132,
 531426,1594308,4782954,14348892,43046706,
 129140148,387420474,1162261452,3486784386,
 10460353188,31381059594,94143178812,282429536466,
 847288609428,2541865828314,7625597484972,
 22876792454946]

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Last modified April 18 20:26 EDT 2024. Contains 371781 sequences. (Running on oeis4.)