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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 4 |
| 2 | 5 |
| 3 | 9 |
| 4 | 17 |
| 5 | 34 |
| 6 | 47 |
| 7 | 75 |
| 8 | 109 |
| 9 | 165 |
| 10 | 240 |
| 11 | 341 |
| 12 | 473 |
| 13 | 671 |
| 14 | 936 |
| 15 | 1268 |
| 16 | 1722 |
| 17 | 2325 |
| 18 | 3091 |
| 19 | 4099 |
| 20 | 5403 |
| 21 | 7083 |
| 22 | 9207 |
| 23 | 11923 |
| 24 | 15339 |
| 25 | 19682 |
| 26 | 25134 |
| 27 | 31909 |
| 28 | 40378 |
| 29 | 50954 |
| 30 | 64068 |
| 31 | 80171 |
| 32 | 100089 |
| 33 | 124506 |
| 34 | 154465 |
| 35 | 191043 |
| 36 | 235636 |
| 37 | 289816 |
| 38 | 355673 |
| 39 | 435285 |
| 40 | 531486 |
| 41 | 647478 |
[1,4,5,9,17,34,47,75,109,165,240,341,473,671,936, 1268,1722,2325,3091,4099,5403,7083,9207,11923, 15339,19682,25134,31909,40378,50954,64068,80171, 100089,124506,154465,191043,235636,289816,355673, 435285,531486,647478] |