The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 6 |
| 2 | 28 |
| 3 | 66 |
| 4 | 190 |
| 5 | 276 |
| 6 | 496 |
| 7 | 946 |
| 8 | 1128 |
| 9 | 1770 |
| 10 | 2278 |
| 11 | 2556 |
| 12 | 3160 |
| 13 | 3486 |
| 14 | 5356 |
| 15 | 5778 |
| 16 | 8128 |
| 17 | 8646 |
| 18 | 9730 |
| 19 | 11476 |
| 20 | 13366 |
| 21 | 14028 |
| 22 | 16110 |
| 23 | 18336 |
| 24 | 19900 |
| 25 | 22366 |
| 26 | 24976 |
| 27 | 25878 |
| 28 | 28680 |
| 29 | 31626 |
| 30 | 34716 |
| 31 | 36856 |
| 32 | 40186 |
| 33 | 47278 |
| 34 | 48516 |
| 35 | 54946 |
| 36 | 60378 |
| 37 | 64620 |
| 38 | 67528 |
| 39 | 72010 |
| 40 | 73536 |
| 41 | 87990 |
[6,28,66,190,276,496,946,1128,1770,2278,2556,3160, 3486,5356,5778,8128,8646,9730,11476,13366,14028, 16110,18336,19900,22366,24976,25878,28680,31626, 34716,36856,40186,47278,48516,54946,60378,64620, 67528,72010,73536,87990] |