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A247121 as a simple table

n a(n)
0 1
1 2
2 12
3 56
4 248
5 1184
6 5472
7 25376
8 118208
9 548864
10 2550912
11 11856896
12 55098368
13 256070144
14 1190065152
15 5530658816
16 25703241728
17 119453057024
18 555145224192
19 2579979739136
20 11990182412288
21 55723107221504
22 258967268524032
23 1203523043065856
24 5593246378754048

[1,2,12,56,248,1184,5472,25376,118208,548864,
 2550912,11856896,55098368,256070144,1190065152,
 5530658816,25703241728,119453057024,555145224192,
 2579979739136,11990182412288,55723107221504,
 258967268524032,1203523043065856,5593246378754048]

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Last modified March 28 20:05 EDT 2024. Contains 371254 sequences. (Running on oeis4.)