n | a(n) |
---|---|
0 | 1 |
1 | 7 |
2 | 26 |
3 | 95 |
4 | 350 |
5 | 1302 |
6 | 4884 |
7 | 18447 |
8 | 70070 |
9 | 267410 |
10 | 1024556 |
11 | 3938662 |
12 | 15184876 |
13 | 58689100 |
14 | 227327400 |
15 | 882230895 |
16 | 3429693990 |
17 | 13353413370 |
18 | 52062618300 |
19 | 203235266850 |
20 | 794258570820 |
21 | 3107215911540 |
22 | 12167180964120 |
23 | 47685286297350 |
24 | 187036101361980 |
25 | 734153906619252 |
26 | 2883674432327864 |
27 | 11333968799308652 |
[1,7,26,95,350,1302,4884,18447,70070,267410, 1024556,3938662,15184876,58689100,227327400, 882230895,3429693990,13353413370,52062618300, 203235266850,794258570820,3107215911540, 12167180964120,47685286297350,187036101361980, 734153906619252,2883674432327864, 11333968799308652] |