n | a(n) |
---|---|
1 | 1 |
2 | 0 |
3 | 4 |
4 | 8 |
5 | 15 |
6 | 25 |
7 | 51 |
8 | 85 |
9 | 187 |
10 | 289 |
11 | 685 |
12 | 1285 |
13 | 2329 |
14 | 4369 |
15 | 10537 |
16 | 18649 |
17 | 35209 |
18 | 66049 |
19 | 150289 |
20 | 281929 |
21 | 598553 |
22 | 1114129 |
23 | 2387089 |
24 | 4491589 |
25 | 8978569 |
26 | 16843009 |
27 | 36087169 |
28 | 71861329 |
29 | 143163649 |
30 | 286331153 |
31 | 579117769 |
32 | 1086374209 |
33 | 2307492233 |
[1,0,4,8,15,25,51,85,187,289,685,1285,2329,4369, 10537,18649,35209,66049,150289,281929,598553, 1114129,2387089,4491589,8978569,16843009,36087169, 71861329,143163649,286331153,579117769,1086374209, 2307492233] |