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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 6 |
| 5 | 11 |
| 6 | 15 |
| 7 | 26 |
| 8 | 36 |
| 9 | 57 |
| 10 | 79 |
| 11 | 130 |
| 12 | 170 |
| 13 | 276 |
| 14 | 379 |
| 15 | 579 |
| 16 | 784 |
| 17 | 1249 |
| 18 | 1654 |
| 19 | 2615 |
| 20 | 3515 |
| 21 | 5343 |
| 22 | 7256 |
| 23 | 11352 |
| 24 | 14930 |
| 25 | 23203 |
| 26 | 31378 |
| 27 | 47510 |
| 28 | 63777 |
| 29 | 98680 |
| 30 | 130502 |
| 31 | 201356 |
| 32 | 270037 |
| 33 | 407428 |
| 34 | 548089 |
| 35 | 840170 |
| 36 | 1110428 |
| 37 | 1701871 |
| 38 | 2284324 |
| 39 | 3440336 |
| 40 | 4601655 |
[1,2,4,6,11,15,26,36,57,79,130,170,276,379,579, 784,1249,1654,2615,3515,5343,7256,11352,14930, 23203,31378,47510,63777,98680,130502,201356, 270037,407428,548089,840170,1110428,1701871, 2284324,3440336,4601655] |