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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 6 |
| 5 | 12 |
| 6 | 18 |
| 7 | 40 |
| 8 | 62 |
| 9 | 148 |
| 10 | 234 |
| 11 | 576 |
| 12 | 918 |
| 13 | 2284 |
| 14 | 3650 |
| 15 | 9112 |
| 16 | 14574 |
| 17 | 36420 |
| 18 | 58266 |
| 19 | 145648 |
| 20 | 233030 |
| 21 | 582556 |
| 22 | 932082 |
| 23 | 2330184 |
| 24 | 3728286 |
| 25 | 9320692 |
| 26 | 14913098 |
| 27 | 37282720 |
| 28 | 59652342 |
| 29 | 149130828 |
| 30 | 238609314 |
| 31 | 596523256 |
| 32 | 954437198 |
| 33 | 2386092964 |
| 34 | 3817748730 |
| 35 | 9544371792 |
[0,1,2,4,6,12,18,40,62,148,234,576,918,2284,3650, 9112,14574,36420,58266,145648,233030,582556, 932082,2330184,3728286,9320692,14913098,37282720, 59652342,149130828,238609314,596523256,954437198, 2386092964,3817748730,9544371792] |