The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 5 |
| 5 | 1 |
| 6 | 7 |
| 7 | 1 |
| 8 | 9 |
| 9 | 10 |
| 10 | 1 |
| 11 | 12 |
| 12 | 13 |
| 13 | 1 |
| 14 | 15 |
| 15 | 16 |
| 16 | 17 |
| 17 | 1 |
| 18 | 19 |
| 19 | 20 |
| 20 | 1 |
| 21 | 22 |
| 22 | 23 |
| 23 | 24 |
| 24 | 25 |
| 25 | 26 |
| 26 | 1 |
| 27 | 28 |
| 28 | 1 |
| 29 | 30 |
| 30 | 31 |
| 31 | 32 |
| 32 | 33 |
| 33 | 1 |
| 34 | 35 |
| 35 | 1 |
| 36 | 37 |
| 37 | 38 |
| 38 | 39 |
| 39 | 40 |
| 40 | 41 |
| 41 | 1 |
| 42 | 43 |
| 43 | 1 |
| 44 | 45 |
| 45 | 1 |
| 46 | 47 |
| 47 | 48 |
| 48 | 49 |
| 49 | 1 |
| 50 | 51 |
| 51 | 52 |
| 52 | 1 |
| 53 | 54 |
| 54 | 55 |
| 55 | 56 |
| 56 | 57 |
| 57 | 1 |
| 58 | 59 |
| 59 | 60 |
| 60 | 1 |
| 61 | 62 |
| 62 | 63 |
| 63 | 64 |
| 64 | 1 |
| 65 | 66 |
| 66 | 67 |
| 67 | 68 |
| 68 | 69 |
| 69 | 1 |
| 70 | 71 |
| 71 | 72 |
| 72 | 73 |
| 73 | 74 |
| 74 | 75 |
| 75 | 76 |
| 76 | 77 |
| 77 | 78 |
| 78 | 79 |
| 79 | 80 |
[1,1,1,5,1,7,1,9,10,1,12,13,1,15,16,17,1,19,20,1, 22,23,24,25,26,1,28,1,30,31,32,33,1,35,1,37,38,39, 40,41,1,43,1,45,1,47,48,49,1,51,52,1,54,55,56,57, 1,59,60,1,62,63,64,1,66,67,68,69,1,71,72,73,74,75, 76,77,78,79,80] |