n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 2 |
4 | 5 |
5 | 12 |
6 | 30 |
7 | 76 |
8 | 196 |
9 | 512 |
10 | 1353 |
11 | 3610 |
12 | 9713 |
13 | 26324 |
14 | 71799 |
15 | 196938 |
16 | 542895 |
17 | 1503312 |
18 | 4179603 |
19 | 11662902 |
20 | 32652735 |
21 | 91695540 |
22 | 258215664 |
23 | 728997192 |
24 | 2062967382 |
25 | 5850674704 |
26 | 16626415975 |
27 | 47337954326 |
28 | 135015505407 |
29 | 385719506620 |
30 | 1103642686382 |
[1,1,1,2,5,12,30,76,196,512,1353,3610,9713,26324, 71799,196938,542895,1503312,4179603,11662902, 32652735,91695540,258215664,728997192,2062967382, 5850674704,16626415975,47337954326,135015505407, 385719506620,1103642686382] |