The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 3 |
| 4 | 3 |
| 5 | 5 |
| 6 | 9 |
| 7 | 12 |
| 8 | 16 |
| 9 | 24 |
| 10 | 39 |
| 11 | 49 |
| 12 | 70 |
| 13 | 94 |
| 14 | 127 |
| 15 | 202 |
| 16 | 247 |
| 17 | 340 |
| 18 | 450 |
| 19 | 606 |
| 20 | 772 |
| 21 | 1169 |
| 22 | 1407 |
| 23 | 1920 |
| 24 | 2454 |
| 25 | 3267 |
| 26 | 4089 |
| 27 | 5469 |
| 28 | 7293 |
| 29 | 9222 |
| 30 | 11884 |
| 31 | 15291 |
| 32 | 19417 |
| 33 | 24890 |
| 34 | 31469 |
| 35 | 39662 |
| 36 | 52619 |
| 37 | 64764 |
| 38 | 82502 |
| 39 | 103576 |
| 40 | 131169 |
| 41 | 162726 |
| 42 | 206015 |
| 43 | 254233 |
| 44 | 318464 |
| 45 | 406262 |
| 46 | 499210 |
| 47 | 620593 |
| 48 | 773673 |
| 49 | 957073 |
| 50 | 1181593 |
[1,1,1,3,3,5,9,12,16,24,39,49,70,94,127,202,247, 340,450,606,772,1169,1407,1920,2454,3267,4089, 5469,7293,9222,11884,15291,19417,24890,31469, 39662,52619,64764,82502,103576,131169,162726, 206015,254233,318464,406262,499210,620593,773673, 957073,1181593] |