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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 4 |
| 3 | 10 |
| 4 | 23 |
| 5 | 48 |
| 6 | 94 |
| 7 | 166 |
| 8 | 285 |
| 9 | 464 |
| 10 | 734 |
| 11 | 1109 |
| 12 | 1646 |
| 13 | 2371 |
| 14 | 3366 |
| 15 | 4652 |
| 16 | 6357 |
| 17 | 8519 |
| 18 | 11309 |
| 19 | 14754 |
| 20 | 19103 |
| 21 | 24399 |
| 22 | 30956 |
| 23 | 38797 |
| 24 | 48355 |
| 25 | 59665 |
| 26 | 73264 |
| 27 | 89145 |
| 28 | 108011 |
| 29 | 129864 |
| 30 | 155554 |
| 31 | 185017 |
| 32 | 219336 |
| 33 | 258438 |
| 34 | 303604 |
| 35 | 354665 |
| 36 | 413213 |
| 37 | 479048 |
| 38 | 554033 |
[0,1,4,10,23,48,94,166,285,464,734,1109,1646,2371, 3366,4652,6357,8519,11309,14754,19103,24399,30956, 38797,48355,59665,73264,89145,108011,129864, 155554,185017,219336,258438,303604,354665,413213, 479048,554033] |