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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 4 |
| 3 | 10 |
| 4 | 18 |
| 5 | 32 |
| 6 | 60 |
| 7 | 100 |
| 8 | 164 |
| 9 | 276 |
| 10 | 436 |
| 11 | 680 |
| 12 | 1070 |
| 13 | 1624 |
| 14 | 2440 |
| 15 | 3672 |
| 16 | 5402 |
| 17 | 7880 |
| 18 | 11484 |
| 19 | 16476 |
| 20 | 23472 |
| 21 | 33360 |
| 22 | 46880 |
| 23 | 65488 |
| 24 | 91212 |
| 25 | 125958 |
| 26 | 173048 |
| 27 | 237012 |
| 28 | 322432 |
| 29 | 436680 |
| 30 | 589604 |
| 31 | 791720 |
| 32 | 1058948 |
| 33 | 1412208 |
| 34 | 1874708 |
| 35 | 2479992 |
| 36 | 3271596 |
| 37 | 4299056 |
| 38 | 5631536 |
| 39 | 7357804 |
[1,2,4,10,18,32,60,100,164,276,436,680,1070,1624, 2440,3672,5402,7880,11484,16476,23472,33360,46880, 65488,91212,125958,173048,237012,322432,436680, 589604,791720,1058948,1412208,1874708,2479992, 3271596,4299056,5631536,7357804] |