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A000219 as a simple table
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 3 |
| 3 | 6 |
| 4 | 13 |
| 5 | 24 |
| 6 | 48 |
| 7 | 86 |
| 8 | 160 |
| 9 | 282 |
| 10 | 500 |
| 11 | 859 |
| 12 | 1479 |
| 13 | 2485 |
| 14 | 4167 |
| 15 | 6879 |
| 16 | 11297 |
| 17 | 18334 |
| 18 | 29601 |
| 19 | 47330 |
| 20 | 75278 |
| 21 | 118794 |
| 22 | 186475 |
| 23 | 290783 |
| 24 | 451194 |
| 25 | 696033 |
| 26 | 1068745 |
| 27 | 1632658 |
| 28 | 2483234 |
| 29 | 3759612 |
| 30 | 5668963 |
| 31 | 8512309 |
| 32 | 12733429 |
| 33 | 18974973 |
| 34 | 28175955 |
| 35 | 41691046 |
| 36 | 61484961 |
| 37 | 90379784 |
| 38 | 132441995 |
| 39 | 193487501 |
| 40 | 281846923 |
[1,1,3,6,13,24,48,86,160,282,500,859,1479,2485, 4167,6879,11297,18334,29601,47330,75278,118794, 186475,290783,451194,696033,1068745,1632658, 2483234,3759612,5668963,8512309,12733429,18974973, 28175955,41691046,61484961,90379784,132441995, 193487501,281846923] |