n | a(n) |
---|---|
1 | 4 |
2 | 10 |
3 | 20 |
4 | 55 |
5 | 76 |
6 | 430 |
7 | 460 |
8 | 2605 |
9 | 5164 |
10 | 26962 |
11 | 38572 |
12 | 367645 |
13 | 431780 |
14 | 3203430 |
15 | 8993804 |
16 | 33860125 |
17 | 63177820 |
18 | 636462350 |
19 | 803796700 |
20 | 6886280971 |
21 | 17456594380 |
22 | 79965550558 |
23 | 139069427020 |
24 | 1466861706095 |
25 | 2251803181492 |
26 | 14434628481170 |
27 | 37066691779180 |
28 | 214483458079665 |
29 | 354963555781060 |
30 | 4803855154772166 |
[4,10,20,55,76,430,460,2605,5164,26962,38572, 367645,431780,3203430,8993804,33860125,63177820, 636462350,803796700,6886280971,17456594380, 79965550558,139069427020,1466861706095, 2251803181492,14434628481170,37066691779180, 214483458079665,354963555781060,4803855154772166] |