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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 4 |
| 3 | 5 |
| 4 | 9 |
| 5 | 14 |
| 6 | 79 |
| 7 | 93 |
| 8 | 172 |
| 9 | 1297 |
| 10 | 2766 |
| 11 | 4063 |
| 12 | 6829 |
| 13 | 120156 |
| 14 | 126985 |
| 15 | 1643976 |
| 16 | 1770961 |
| 17 | 31750313 |
| 18 | 33521274 |
| 19 | 65271587 |
| 20 | 164064448 |
| 21 | 1213722723 |
| 22 | 1377787171 |
| 23 | 2591509894 |
| 24 | 14335336641 |
| 25 | 16926846535 |
| 26 | 31262183176 |
| 27 | 48189029711 |
| 28 | 175829272309 |
| 29 | 224018302020 |
[1,1,4,5,9,14,79,93,172,1297,2766,4063,6829, 120156,126985,1643976,1770961,31750313,33521274, 65271587,164064448,1213722723,1377787171, 2591509894,14335336641,16926846535,31262183176, 48189029711,175829272309,224018302020] |