The OEIS is supported by the many generous donors to the OEIS Foundation.
Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 2 |
| 5 | 3 |
| 6 | 4 |
| 7 | 5 |
| 8 | 7 |
| 9 | 9 |
| 10 | 12 |
| 11 | 15 |
| 12 | 20 |
| 13 | 26 |
| 14 | 33 |
| 15 | 43 |
| 16 | 55 |
| 17 | 71 |
| 18 | 92 |
| 19 | 118 |
| 20 | 152 |
| 21 | 195 |
| 22 | 251 |
| 23 | 323 |
| 24 | 416 |
| 25 | 535 |
| 26 | 688 |
| 27 | 884 |
| 28 | 1137 |
| 29 | 1462 |
| 30 | 1880 |
| 31 | 2418 |
| 32 | 3109 |
| 33 | 3997 |
| 34 | 5139 |
| 35 | 6607 |
| 36 | 8495 |
| 37 | 10923 |
| 38 | 14043 |
| 39 | 18056 |
| 40 | 23215 |
| 41 | 29848 |
| 42 | 38376 |
| 43 | 49341 |
| 44 | 63439 |
| 45 | 81564 |
| 46 | 104868 |
| 47 | 134831 |
| 48 | 173354 |
| 49 | 222884 |
[1,1,1,2,2,3,4,5,7,9,12,15,20,26,33,43,55,71,92, 118,152,195,251,323,416,535,688,884,1137,1462, 1880,2418,3109,3997,5139,6607,8495,10923,14043, 18056,23215,29848,38376,49341,63439,81564,104868, 134831,173354,222884] |