n | a(n) |
---|---|
1 | 1 |
2 | 61 |
3 | 721 |
4 | 3901 |
5 | 15601 |
6 | 43981 |
7 | 117601 |
8 | 249661 |
9 | 525601 |
10 | 951661 |
11 | 1771441 |
12 | 2812621 |
13 | 4826641 |
14 | 7173661 |
15 | 11248321 |
16 | 15978301 |
17 | 24137281 |
18 | 32061661 |
19 | 47045521 |
20 | 60859501 |
21 | 84790321 |
22 | 108057901 |
23 | 148035361 |
24 | 180005581 |
25 | 243765601 |
26 | 294425101 |
27 | 383163121 |
28 | 458761501 |
29 | 594822481 |
30 | 686147581 |
[1,61,721,3901,15601,43981,117601,249661,525601, 951661,1771441,2812621,4826641,7173661,11248321, 15978301,24137281,32061661,47045521,60859501, 84790321,108057901,148035361,180005581,243765601, 294425101,383163121,458761501,594822481,686147581] |