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| n | a(n) |
|---|---|
| 0 | 2 |
| 1 | 11 |
| 2 | 36 |
| 3 | 141 |
| 4 | 646 |
| 5 | 3151 |
| 6 | 15656 |
| 7 | 78161 |
| 8 | 390666 |
| 9 | 1953171 |
| 10 | 9765676 |
| 11 | 48828181 |
| 12 | 244140686 |
| 13 | 1220703191 |
| 14 | 6103515696 |
| 15 | 30517578201 |
| 16 | 152587890706 |
| 17 | 762939453211 |
| 18 | 3814697265716 |
| 19 | 19073486328221 |
| 20 | 95367431640726 |
| 21 | 476837158203231 |
| 22 | 2384185791015736 |
| 23 | 11920928955078241 |
| 24 | 59604644775390746 |
[2,11,36,141,646,3151,15656,78161,390666,1953171, 9765676,48828181,244140686,1220703191,6103515696, 30517578201,152587890706,762939453211, 3814697265716,19073486328221,95367431640726, 476837158203231,2384185791015736, 11920928955078241,59604644775390746] |