The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 3 |
| 3 | 6 |
| 4 | 11 |
| 5 | 16 |
| 6 | 26 |
| 7 | 43 |
| 8 | 69 |
| 9 | 115 |
| 10 | 141 |
| 11 | 158 |
| 12 | 208 |
| 13 | 293 |
| 14 | 358 |
| 15 | 440 |
| 16 | 541 |
| 17 | 642 |
| 18 | 743 |
| 19 | 1117 |
| 20 | 1378 |
| 21 | 1612 |
| 22 | 1826 |
| 23 | 2052 |
| 24 | 2494 |
| 25 | 2856 |
| 26 | 3181 |
| 27 | 3703 |
| 28 | 4107 |
| 29 | 4862 |
| 30 | 5347 |
| 31 | 5924 |
| 32 | 6454 |
| 33 | 7645 |
| 34 | 8322 |
| 35 | 8999 |
| 36 | 9784 |
| 37 | 10941 |
| 38 | 12458 |
| 39 | 13580 |
| 40 | 14542 |
| 41 | 15839 |
| 42 | 16864 |
| 43 | 18309 |
| 44 | 19876 |
| 45 | 21696 |
| 46 | 23311 |
| 47 | 25408 |
| 48 | 28377 |
| 49 | 30314 |
[0,1,3,6,11,16,26,43,69,115,141,158,208,293,358, 440,541,642,743,1117,1378,1612,1826,2052,2494, 2856,3181,3703,4107,4862,5347,5924,6454,7645,8322, 8999,9784,10941,12458,13580,14542,15839,16864, 18309,19876,21696,23311,25408,28377,30314] |