n | a(n) |
---|---|
1 | 0 |
2 | 2 |
3 | 9 |
4 | 31 |
5 | 80 |
6 | 171 |
7 | 322 |
8 | 554 |
9 | 891 |
10 | 1360 |
11 | 1991 |
12 | 2817 |
13 | 3874 |
14 | 5201 |
15 | 6840 |
16 | 8836 |
17 | 11237 |
18 | 14094 |
19 | 17461 |
20 | 21395 |
21 | 25956 |
22 | 31207 |
23 | 37214 |
24 | 44046 |
25 | 51775 |
26 | 60476 |
27 | 70227 |
28 | 81109 |
29 | 93206 |
30 | 106605 |
31 | 121396 |
32 | 137672 |
33 | 155529 |
34 | 175066 |
35 | 196385 |
36 | 219591 |
37 | 244792 |
38 | 272099 |
39 | 301626 |
[0,2,9,31,80,171,322,554,891,1360,1991,2817,3874, 5201,6840,8836,11237,14094,17461,21395,25956, 31207,37214,44046,51775,60476,70227,81109,93206, 106605,121396,137672,155529,175066,196385,219591, 244792,272099,301626] |