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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 4 |
| 3 | 9 |
| 4 | 14 |
| 5 | 29 |
| 6 | 44 |
| 7 | 77 |
| 8 | 120 |
| 9 | 195 |
| 10 | 291 |
| 11 | 453 |
| 12 | 673 |
| 13 | 998 |
| 14 | 1460 |
| 15 | 2101 |
| 16 | 3034 |
| 17 | 4287 |
| 18 | 6051 |
| 19 | 8430 |
| 20 | 11766 |
| 21 | 16098 |
| 22 | 22209 |
| 23 | 30078 |
| 24 | 40881 |
| 25 | 54914 |
| 26 | 73814 |
| 27 | 98159 |
| 28 | 130804 |
| 29 | 172507 |
| 30 | 227608 |
| 31 | 298254 |
| 32 | 390262 |
| 33 | 507721 |
| 34 | 659731 |
| 35 | 852727 |
| 36 | 1100301 |
| 37 | 1414461 |
| 38 | 1813262 |
| 39 | 2317895 |
[1,2,4,9,14,29,44,77,120,195,291,453,673,998,1460, 2101,3034,4287,6051,8430,11766,16098,22209,30078, 40881,54914,73814,98159,130804,172507,227608, 298254,390262,507721,659731,852727,1100301, 1414461,1813262,2317895] |