n | a(n) |
---|---|
1 | 4 |
2 | 10 |
3 | 24 |
4 | 117 |
5 | 284 |
6 | 1673 |
7 | 4429 |
8 | 26552 |
9 | 72934 |
10 | 442065 |
11 | 1235006 |
12 | 7532763 |
13 | 21256771 |
14 | 130255369 |
15 | 370176224 |
16 | 2276294040 |
17 | 6503070384 |
18 | 40098304454 |
19 | 115024311048 |
20 | 710794645074 |
21 | 2045650165772 |
22 | 12663624563666 |
23 | 36543679573017 |
[4,10,24,117,284,1673,4429,26552,72934,442065, 1235006,7532763,21256771,130255369,370176224, 2276294040,6503070384,40098304454,115024311048, 710794645074,2045650165772,12663624563666, 36543679573017] |