n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 7 |
3 | 21 |
4 | 47 |
5 | 141 |
6 | 329 |
7 | 987 |
8 | 2207 |
9 | 6621 |
10 | 15449 |
11 | 46347 |
12 | 103729 |
13 | 311187 |
14 | 726103 |
15 | 2178309 |
16 | 4870847 |
17 | 14612541 |
18 | 34095929 |
19 | 102287787 |
20 | 228929809 |
21 | 686789427 |
22 | 1602508663 |
23 | 4807525989 |
24 | 10749959329 |
25 | 32249877987 |
26 | 75249715303 |
[1,3,7,21,47,141,329,987,2207,6621,15449,46347, 103729,311187,726103,2178309,4870847,14612541, 34095929,102287787,228929809,686789427,1602508663, 4807525989,10749959329,32249877987,75249715303] |