n | a(n) |
---|---|
0 | 1 |
1 | 13 |
2 | 85 |
3 | 385 |
4 | 1375 |
5 | 4147 |
6 | 11011 |
7 | 26455 |
8 | 58630 |
9 | 121550 |
10 | 238238 |
11 | 445094 |
12 | 797810 |
13 | 1379210 |
14 | 2309450 |
15 | 3759074 |
16 | 5965487 |
17 | 9253475 |
18 | 14060475 |
19 | 20967375 |
20 | 30735705 |
21 | 44352165 |
22 | 63081525 |
23 | 88529025 |
24 | 122713500 |
25 | 168152556 |
26 | 227961228 |
27 | 305965660 |
28 | 406833460 |
29 | 536222500 |
30 | 700950052 |
[1,13,85,385,1375,4147,11011,26455,58630,121550, 238238,445094,797810,1379210,2309450,3759074, 5965487,9253475,14060475,20967375,30735705, 44352165,63081525,88529025,122713500,168152556, 227961228,305965660,406833460,536222500,700950052] |