n | a(n) |
---|---|
0 | 1 |
1 | 6 |
2 | 27 |
3 | 98 |
4 | 315 |
5 | 918 |
6 | 2492 |
7 | 6372 |
8 | 15525 |
9 | 36280 |
10 | 81816 |
11 | 178794 |
12 | 380051 |
13 | 788004 |
14 | 1597725 |
15 | 3174210 |
16 | 6190182 |
17 | 11867310 |
18 | 22395359 |
19 | 41650050 |
20 | 76413078 |
21 | 138421358 |
22 | 247783113 |
23 | 438616728 |
24 | 768291650 |
25 | 1332444330 |
26 | 2289213495 |
27 | 3898064226 |
28 | 6581591157 |
29 | 11023247880 |
[1,6,27,98,315,918,2492,6372,15525,36280,81816, 178794,380051,788004,1597725,3174210,6190182, 11867310,22395359,41650050,76413078,138421358, 247783113,438616728,768291650,1332444330, 2289213495,3898064226,6581591157,11023247880] |