n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 5 |
4 | 14 |
5 | 38 |
6 | 118 |
7 | 353 |
8 | 1142 |
9 | 3628 |
10 | 12070 |
11 | 39764 |
12 | 135114 |
13 | 456160 |
14 | 1574734 |
15 | 5412457 |
16 | 18912486 |
17 | 65896108 |
18 | 232472470 |
19 | 818693712 |
20 | 2910776906 |
21 | 10338854570 |
22 | 36996327526 |
23 | 132328613972 |
24 | 476099847330 |
25 | 1712816375654 |
26 | 6191107090798 |
27 | 22382207179178 |
28 | 81226673300290 |
29 | 294879429959828 |
30 | 1073880052595966 |
[1,1,2,5,14,38,118,353,1142,3628,12070,39764, 135114,456160,1574734,5412457,18912486,65896108, 232472470,818693712,2910776906,10338854570, 36996327526,132328613972,476099847330, 1712816375654,6191107090798,22382207179178, 81226673300290,294879429959828,1073880052595966] |