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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 10 |
| 3 | 35 |
| 4 | 91 |
| 5 | 189 |
| 6 | 351 |
| 7 | 594 |
| 8 | 946 |
| 9 | 1430 |
| 10 | 2080 |
| 11 | 2925 |
| 12 | 4005 |
| 13 | 5355 |
| 14 | 7021 |
| 15 | 9044 |
| 16 | 11476 |
| 17 | 14364 |
| 18 | 17766 |
| 19 | 21735 |
| 20 | 26335 |
| 21 | 31625 |
| 22 | 37675 |
| 23 | 44550 |
| 24 | 52326 |
| 25 | 61074 |
| 26 | 70876 |
| 27 | 81809 |
| 28 | 93961 |
| 29 | 107415 |
| 30 | 122265 |
| 31 | 138600 |
| 32 | 156520 |
| 33 | 176120 |
| 34 | 197506 |
| 35 | 220779 |
| 36 | 246051 |
| 37 | 273429 |
| 38 | 303031 |
| 39 | 334970 |
| 40 | 369370 |
| 41 | 406350 |
| 42 | 446040 |
| 43 | 488565 |
| 44 | 534061 |
| 45 | 582659 |
| 46 | 634501 |
[0,0,10,35,91,189,351,594,946,1430,2080,2925,4005, 5355,7021,9044,11476,14364,17766,21735,26335, 31625,37675,44550,52326,61074,70876,81809,93961, 107415,122265,138600,156520,176120,197506,220779, 246051,273429,303031,334970,369370,406350,446040, 488565,534061,582659,634501] |