n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 14 |
3 | 47 |
4 | 154 |
5 | 496 |
6 | 1577 |
7 | 4964 |
8 | 15502 |
9 | 48103 |
10 | 148490 |
11 | 456416 |
12 | 1397905 |
13 | 4268740 |
14 | 13002638 |
15 | 39522143 |
16 | 119912698 |
17 | 363262672 |
18 | 1099015481 |
19 | 3321204260 |
20 | 10026858766 |
21 | 30246156439 |
22 | 91171963754 |
23 | 274650794432 |
24 | 826923598369 |
[1,4,14,47,154,496,1577,4964,15502,48103,148490, 456416,1397905,4268740,13002638,39522143, 119912698,363262672,1099015481,3321204260, 10026858766,30246156439,91171963754,274650794432, 826923598369] |