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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 13 |
| 4 | 35 |
| 5 | 131 |
| 6 | 471 |
| 7 | 1723 |
| 8 | 6435 |
| 9 | 24349 |
| 10 | 92393 |
| 11 | 352727 |
| 12 | 1352183 |
| 13 | 5200313 |
| 14 | 20058321 |
| 15 | 77559203 |
| 16 | 300540195 |
| 17 | 1166803127 |
| 18 | 4537569063 |
| 19 | 17672631919 |
| 20 | 68923264585 |
| 21 | 269128942459 |
| 22 | 1052049481893 |
| 23 | 4116715363823 |
| 24 | 16123801860855 |
| 25 | 63205303219531 |
| 26 | 247959266474091 |
| 27 | 973469712897103 |
| 28 | 3824345300380465 |
| 29 | 15033633249770549 |
| 30 | 59132290782710201 |
| 31 | 232714176627630575 |
| 32 | 916312070471295267 |
| 33 | 3609714217009191161 |
| 34 | 14226520737620288421 |
[1,3,13,35,131,471,1723,6435,24349,92393,352727, 1352183,5200313,20058321,77559203,300540195, 1166803127,4537569063,17672631919,68923264585, 269128942459,1052049481893,4116715363823, 16123801860855,63205303219531,247959266474091, 973469712897103,3824345300380465, 15033633249770549,59132290782710201, 232714176627630575,916312070471295267, 3609714217009191161,14226520737620288421] |