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 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 4 |
| 5 | 6 |
| 6 | 8 |
| 7 | 10 |
| 8 | 20 |
| 9 | 33 |
| 10 | 39 |
| 11 | 45 |
| 12 | 63 |
| 13 | 71 |
| 14 | 79 |
| 15 | 87 |
| 16 | 111 |
| 17 | 121 |
| 18 | 149 |
| 19 | 161 |
| 20 | 193 |
| 21 | 207 |
| 22 | 221 |
| 23 | 235 |
| 24 | 273 |
| 25 | 314 |
| 26 | 332 |
| 27 | 377 |
| 28 | 425 |
| 29 | 447 |
| 30 | 469 |
| 31 | 491 |
| 32 | 545 |
| 33 | 569 |
| 34 | 593 |
| 35 | 617 |
| 36 | 677 |
| 37 | 703 |
| 38 | 729 |
| 39 | 755 |
| 40 | 821 |
| 41 | 849 |
| 42 | 877 |
| 43 | 905 |
| 44 | 977 |
| 45 | 1052 |
| 46 | 1084 |
| 47 | 1116 |
| 48 | 1196 |
| 49 | 1279 |
| 50 | 1365 |
| 51 | 1403 |
| 52 | 1493 |
| 53 | 1533 |
| 54 | 1627 |
[0,0,0,4,6,8,10,20,33,39,45,63,71,79,87,111,121, 149,161,193,207,221,235,273,314,332,377,425,447, 469,491,545,569,593,617,677,703,729,755,821,849, 877,905,977,1052,1084,1116,1196,1279,1365,1403, 1493,1533,1627] |