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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 14 |
| 2 | 574 |
| 3 | 3542 |
| 4 | 18494 |
| 5 | 43414 |
| 6 | 145222 |
| 7 | 235998 |
| 8 | 591934 |
| 9 | 860846 |
| 10 | 1779974 |
| 11 | 2256422 |
| 12 | 4678982 |
| 13 | 5195750 |
| 14 | 9675918 |
| 15 | 10983742 |
| 16 | 18942014 |
| 17 | 19873966 |
| 18 | 35294686 |
| 19 | 34670454 |
| 20 | 57349894 |
| 21 | 59707494 |
| 22 | 92513302 |
| 23 | 90116222 |
| 24 | 149759302 |
| 25 | 135668414 |
| 26 | 213025750 |
| 27 | 209185718 |
| 28 | 311753358 |
| 29 | 287144326 |
| 30 | 450333422 |
[1,14,574,3542,18494,43414,145222,235998,591934, 860846,1779974,2256422,4678982,5195750,9675918, 10983742,18942014,19873966,35294686,34670454, 57349894,59707494,92513302,90116222,149759302, 135668414,213025750,209185718,311753358,287144326, 450333422] |