n | a(n) |
---|---|
1 | 4 |
2 | 15 |
3 | 48 |
4 | 138 |
5 | 350 |
6 | 790 |
7 | 1616 |
8 | 3049 |
9 | 5384 |
10 | 9001 |
11 | 14376 |
12 | 22092 |
13 | 32850 |
14 | 47480 |
15 | 66952 |
16 | 92387 |
17 | 125068 |
18 | 166451 |
19 | 218176 |
20 | 282078 |
21 | 360198 |
22 | 454794 |
23 | 568352 |
24 | 703597 |
25 | 863504 |
26 | 1051309 |
27 | 1270520 |
28 | 1524928 |
29 | 1818618 |
30 | 2155980 |
31 | 2541720 |
32 | 2980871 |
33 | 3478804 |
34 | 4041239 |
[4,15,48,138,350,790,1616,3049,5384,9001,14376, 22092,32850,47480,66952,92387,125068,166451, 218176,282078,360198,454794,568352,703597,863504, 1051309,1270520,1524928,1818618,2155980,2541720, 2980871,3478804,4041239] |