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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 8 |
| 2 | 41 |
| 3 | 90 |
| 4 | 671 |
| 5 | 6788 |
| 6 | 31803 |
| 7 | 119486 |
| 8 | 746315 |
| 9 | 1959108 |
| 10 | 17687917 |
| 11 | 168219722 |
| 12 | 1612302467 |
| 13 | 6734874480 |
| 14 | 30113355681 |
| 15 | 146636111898 |
| 16 | 714115126295 |
| 17 | 4578149141156 |
| 18 | 16402101919131 |
| 19 | 158506042034472 |
| 20 | 1074010290985493 |
| 21 | 7994020873236474 |
| 22 | 64888090981118585 |
| 23 | 366989246419220666 |
| 24 | 1682317245914363391 |
| 25 | 6686668206846701272 |
| 26 | 28987038620286638765 |
| 27 | 149983846501792016730 |
| 28 | 1140728507133902950163 |
| 29 | 7842482827496240439354 |
| 30 | 30507352871067667404773 |
[1,8,41,90,671,6788,31803,119486,746315,1959108, 17687917,168219722,1612302467,6734874480, 30113355681,146636111898,714115126295, 4578149141156,16402101919131,158506042034472, 1074010290985493,7994020873236474, 64888090981118585,366989246419220666, 1682317245914363391,6686668206846701272, 28987038620286638765,149983846501792016730, 1140728507133902950163,7842482827496240439354, 30507352871067667404773] |