n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 9 |
3 | 31 |
4 | 108 |
5 | 325 |
6 | 938 |
7 | 2457 |
8 | 6128 |
9 | 14358 |
10 | 32123 |
11 | 68488 |
12 | 140478 |
13 | 277278 |
14 | 529624 |
15 | 980476 |
16 | 1765492 |
17 | 3097071 |
18 | 5306548 |
19 | 8893500 |
20 | 14607217 |
21 | 23542097 |
22 | 37285849 |
23 | 58094004 |
24 | 89148980 |
25 | 134862913 |
26 | 201312513 |
27 | 296746270 |
28 | 432288197 |
29 | 622756805 |
30 | 887772827 |
31 | 1253040268 |
[1,2,9,31,108,325,938,2457,6128,14358,32123,68488, 140478,277278,529624,980476,1765492,3097071, 5306548,8893500,14607217,23542097,37285849, 58094004,89148980,134862913,201312513,296746270, 432288197,622756805,887772827,1253040268] |