Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
n | a(n) |
---|---|
1 | 9 |
2 | 81 |
3 | 164 |
4 | 400 |
5 | 824 |
6 | 1940 |
7 | 4200 |
8 | 9276 |
9 | 21004 |
10 | 46026 |
11 | 102674 |
12 | 228630 |
13 | 506868 |
14 | 1128070 |
15 | 2505156 |
16 | 5569740 |
17 | 12380188 |
18 | 27502690 |
19 | 61145106 |
20 | 135886522 |
21 | 301975112 |
22 | 671190932 |
23 | 1491685306 |
24 | 3315241202 |
25 | 7368059728 |
26 | 16375432824 |
27 | 36394465410 |
[9,81,164,400,824,1940,4200,9276,21004,46026, 102674,228630,506868,1128070,2505156,5569740, 12380188,27502690,61145106,135886522,301975112, 671190932,1491685306,3315241202,7368059728, 16375432824,36394465410] |