The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 5 |
| 3 | 8 |
| 4 | 13 |
| 5 | 18 |
| 6 | 37 |
| 7 | 64 |
| 8 | 97 |
| 9 | 140 |
| 10 | 207 |
| 11 | 286 |
| 12 | 399 |
| 13 | 528 |
| 14 | 687 |
| 15 | 878 |
| 16 | 1127 |
| 17 | 1408 |
| 18 | 1749 |
| 19 | 2130 |
| 20 | 2607 |
| 21 | 3128 |
| 22 | 3743 |
| 23 | 4414 |
| 24 | 5191 |
| 25 | 6056 |
| 26 | 7067 |
| 27 | 8156 |
| 28 | 9387 |
| 29 | 10706 |
| 30 | 12241 |
| 31 | 13876 |
| 32 | 15717 |
| 33 | 17670 |
| 34 | 19829 |
| 35 | 22172 |
| 36 | 24787 |
| 37 | 27542 |
| 38 | 30571 |
| 39 | 33752 |
| 40 | 37317 |
| 41 | 41058 |
| 42 | 45153 |
| 43 | 49440 |
| 44 | 54073 |
[2,5,8,13,18,37,64,97,140,207,286,399,528,687,878, 1127,1408,1749,2130,2607,3128,3743,4414,5191,6056, 7067,8156,9387,10706,12241,13876,15717,17670, 19829,22172,24787,27542,30571,33752,37317,41058, 45153,49440,54073] |