n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 31 |
3 | 301 |
4 | 1701 |
5 | 6951 |
6 | 22827 |
7 | 63987 |
8 | 159027 |
9 | 359502 |
10 | 752752 |
11 | 1479478 |
12 | 2757118 |
13 | 4910178 |
14 | 8408778 |
15 | 13916778 |
16 | 22350954 |
17 | 34952799 |
18 | 53374629 |
19 | 79781779 |
20 | 116972779 |
21 | 168519505 |
22 | 238929405 |
23 | 333832005 |
24 | 460192005 |
25 | 626551380 |
26 | 843303006 |
27 | 1122998436 |
28 | 1480692556 |
[0,1,31,301,1701,6951,22827,63987,159027,359502, 752752,1479478,2757118,4910178,8408778,13916778, 22350954,34952799,53374629,79781779,116972779, 168519505,238929405,333832005,460192005,626551380, 843303006,1122998436,1480692556] |