n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 6 |
3 | 19 |
4 | 69 |
5 | 267 |
6 | 1093 |
7 | 4629 |
8 | 20142 |
9 | 89473 |
10 | 404076 |
11 | 1849746 |
12 | 8563558 |
13 | 40025574 |
14 | 188612388 |
15 | 895115942 |
16 | 4274453904 |
17 | 20523807009 |
18 | 99025615998 |
19 | 479874362583 |
20 | 2334582421497 |
21 | 11398055887003 |
22 | 55828060595832 |
23 | 274254002718255 |
24 | 1350907899813921 |
25 | 6670789629569022 |
[1,3,6,19,69,267,1093,4629,20142,89473,404076, 1849746,8563558,40025574,188612388,895115942, 4274453904,20523807009,99025615998,479874362583, 2334582421497,11398055887003,55828060595832, 274254002718255,1350907899813921,6670789629569022] |