n | a(n) |
---|---|
1 | 8 |
2 | 21 |
3 | 90 |
4 | 304 |
5 | 1141 |
6 | 4084 |
7 | 14925 |
8 | 54049 |
9 | 196508 |
10 | 713225 |
11 | 2590574 |
12 | 9406448 |
13 | 34159833 |
14 | 124045128 |
15 | 450458681 |
16 | 1635781681 |
17 | 5940155616 |
18 | 21570956189 |
19 | 78332387394 |
20 | 284454730240 |
21 | 1032963629229 |
22 | 3751084683708 |
23 | 13621618755397 |
[8,21,90,304,1141,4084,14925,54049,196508,713225, 2590574,9406448,34159833,124045128,450458681, 1635781681,5940155616,21570956189,78332387394, 284454730240,1032963629229,3751084683708, 13621618755397] |