n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 7 |
4 | 27 |
5 | 74 |
6 | 317 |
7 | 996 |
8 | 4372 |
9 | 14829 |
10 | 67114 |
11 | 238443 |
12 | 1096888 |
13 | 4043925 |
14 | 18801767 |
15 | 71227050 |
16 | 334220773 |
17 | 1293673371 |
18 | 6108985871 |
19 | 24066116295 |
20 | 114253779505 |
21 | 456663608981 |
22 | 2177363926748 |
23 | 8810459120136 |
24 | 42156659937114 |
25 | 172384555819259 |
26 | 827345086699709 |
27 | 3414125869539624 |
28 | 16427910943729694 |
[1,1,3,7,27,74,317,996,4372,14829,67114,238443, 1096888,4043925,18801767,71227050,334220773, 1293673371,6108985871,24066116295,114253779505, 456663608981,2177363926748,8810459120136, 42156659937114,172384555819259,827345086699709, 3414125869539624,16427910943729694] |