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 | 3 |
| 3 | 1 |
| 4 | 6 |
| 5 | 25 |
| 6 | 1 |
| 7 | 13 |
| 8 | 76 |
| 9 | 350 |
| 10 | 1 |
| 11 | 28 |
| 12 | 242 |
| 13 | 1430 |
| 14 | 6951 |
| 15 | 1 |
| 16 | 59 |
| 17 | 783 |
| 18 | 6023 |
| 19 | 35659 |
| 20 | 179487 |
| 21 | 1 |
| 22 | 122 |
| 23 | 2527 |
| 24 | 25782 |
| 25 | 187092 |
| 26 | 1108128 |
| 27 | 5715424 |
| 28 | 1 |
| 29 | 249 |
| 30 | 8070 |
| 31 | 110960 |
| 32 | 995595 |
| 33 | 6963711 |
| 34 | 41250694 |
| 35 | 216627840 |
| 36 | 1 |
| 37 | 504 |
| 38 | 25456 |
| 39 | 476626 |
| 40 | 5337322 |
| 41 | 44302510 |
| 42 | 302087532 |
| 43 | 1789534102 |
| 44 | 9528822303 |
[1,1,3,1,6,25,1,13,76,350,1,28,242,1430,6951,1,59, 783,6023,35659,179487,1,122,2527,25782,187092, 1108128,5715424,1,249,8070,110960,995595,6963711, 41250694,216627840,1,504,25456,476626,5337322, 44302510,302087532,1789534102,9528822303] |