The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 5 |
| 2 | 16 |
| 3 | 36 |
| 4 | 70 |
| 5 | 126 |
| 6 | 216 |
| 7 | 345 |
| 8 | 512 |
| 9 | 797 |
| 10 | 1055 |
| 11 | 1475 |
| 12 | 2047 |
| 13 | 2659 |
| 14 | 3403 |
| 15 | 4422 |
| 16 | 5629 |
| 17 | 6865 |
| 18 | 8669 |
| 19 | 10835 |
| 20 | 12903 |
| 21 | 15785 |
| 22 | 18801 |
| 23 | 22456 |
| 24 | 26469 |
| 25 | 31108 |
| 26 | 36949 |
| 27 | 42744 |
| 28 | 49436 |
| 29 | 57033 |
| 30 | 66771 |
| 31 | 75558 |
| 32 | 86303 |
| 33 | 96852 |
| 34 | 110253 |
| 35 | 123954 |
| 36 | 140688 |
| 37 | 158389 |
| 38 | 178811 |
| 39 | 197293 |
| 40 | 223580 |
[5,16,36,70,126,216,345,512,797,1055,1475,2047, 2659,3403,4422,5629,6865,8669,10835,12903,15785, 18801,22456,26469,31108,36949,42744,49436,57033, 66771,75558,86303,96852,110253,123954,140688, 158389,178811,197293,223580] |