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) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 19 |
| 4 | 139 |
| 5 | 1097 |
| 6 | 8960 |
| 7 | 75290 |
| 8 | 651085 |
| 9 | 5735086 |
| 10 | 51247361 |
| 11 | 463196868 |
| 12 | 4225763390 |
| 13 | 38851672813 |
| 14 | 359541975662 |
| 15 | 3345924530873 |
| 16 | 31288310624754 |
| 17 | 293820812588401 |
| 18 | 2769490109678920 |
| 19 | 26191046215879444 |
| 20 | 248421640738371325 |
| 21 | 2362546444095790527 |
| 22 | 22522418647770393663 |
[1,3,19,139,1097,8960,75290,651085,5735086, 51247361,463196868,4225763390,38851672813, 359541975662,3345924530873,31288310624754, 293820812588401,2769490109678920, 26191046215879444,248421640738371325, 2362546444095790527,22522418647770393663] |