Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 21 |
3 | 125 |
4 | 801 |
5 | 5390 |
6 | 37558 |
7 | 268656 |
8 | 1961355 |
9 | 14555266 |
10 | 109472688 |
11 | 832625469 |
12 | 6393072182 |
13 | 49488174700 |
14 | 385795571040 |
15 | 3026190911853 |
16 | 23867383581009 |
17 | 189156323865632 |
18 | 1505649098866535 |
19 | 12031665674394905 |
20 | 96486323017581420 |
21 | 776255276240140980 |
[1,4,21,125,801,5390,37558,268656,1961355, 14555266,109472688,832625469,6393072182, 49488174700,385795571040,3026190911853, 23867383581009,189156323865632,1505649098866535, 12031665674394905,96486323017581420, 776255276240140980] |