n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 4 |
4 | 13 |
5 | 22 |
6 | 84 |
7 | 169 |
8 | 585 |
9 | 1368 |
10 | 4352 |
11 | 11018 |
12 | 33610 |
13 | 89097 |
14 | 265059 |
15 | 724070 |
16 | 2122093 |
17 | 5909279 |
18 | 17178016 |
19 | 48426584 |
20 | 140179658 |
21 | 398403254 |
22 | 1150970558 |
23 | 3289206057 |
24 | 9495961430 |
25 | 27241417922 |
26 | 78650410773 |
27 | 226250990962 |
28 | 653512163209 |
[1,3,4,13,22,84,169,585,1368,4352,11018,33610, 89097,265059,724070,2122093,5909279,17178016, 48426584,140179658,398403254,1150970558, 3289206057,9495961430,27241417922,78650410773, 226250990962,653512163209] |