The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 8 |
| 3 | 26 |
| 4 | 60 |
| 5 | 115 |
| 6 | 196 |
| 7 | 308 |
| 8 | 456 |
| 9 | 645 |
| 10 | 880 |
| 11 | 1166 |
| 12 | 1508 |
| 13 | 1911 |
| 14 | 2380 |
| 15 | 2920 |
| 16 | 3536 |
| 17 | 4233 |
| 18 | 5016 |
| 19 | 5890 |
| 20 | 6860 |
| 21 | 7931 |
| 22 | 9108 |
| 23 | 10396 |
| 24 | 11800 |
| 25 | 13325 |
| 26 | 14976 |
| 27 | 16758 |
| 28 | 18676 |
| 29 | 20735 |
| 30 | 22940 |
| 31 | 25296 |
| 32 | 27808 |
| 33 | 30481 |
| 34 | 33320 |
| 35 | 36330 |
| 36 | 39516 |
| 37 | 42883 |
| 38 | 46436 |
| 39 | 50180 |
| 40 | 54120 |
[0,1,8,26,60,115,196,308,456,645,880,1166,1508, 1911,2380,2920,3536,4233,5016,5890,6860,7931,9108, 10396,11800,13325,14976,16758,18676,20735,22940, 25296,27808,30481,33320,36330,39516,42883,46436, 50180,54120] |