n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 143 |
6 | 7855 |
7 | 153311 |
8 | 1505465 |
9 | 9729830 |
10 | 47235703 |
11 | 186615092 |
12 | 630338668 |
13 | 1882894541 |
14 | 5092130575 |
15 | 12686490993 |
16 | 29498296651 |
17 | 64664954532 |
18 | 134715649055 |
19 | 268438970166 |
20 | 514318521438 |
21 | 951646716171 |
22 | 1706721390223 |
23 | 2976056379875 |
24 | 5058962536429 |
25 | 8402677784738 |
26 | 13663807273607 |
[0,0,0,0,143,7855,153311,1505465,9729830,47235703, 186615092,630338668,1882894541,5092130575, 12686490993,29498296651,64664954532,134715649055, 268438970166,514318521438,951646716171, 1706721390223,2976056379875,5058962536429, 8402677784738,13663807273607] |