The OEIS is supported by the many generous donors to the OEIS Foundation.
A283143 as a simple table
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 4 |
| 3 | 10 |
| 4 | 20 |
| 5 | 34 |
| 6 | 92 |
| 7 | 186 |
| 8 | 340 |
| 9 | 674 |
| 10 | 1052 |
| 11 | 2490 |
| 12 | 5652 |
| 13 | 8994 |
| 14 | 22812 |
| 15 | 42170 |
| 16 | 92436 |
| 17 | 170146 |
| 18 | 296988 |
| 19 | 686010 |
| 20 | 1107476 |
| 21 | 2611490 |
| 22 | 5606172 |
| 23 | 8995002 |
| 24 | 22420756 |
| 25 | 35975330 |
| 26 | 89907228 |
| 27 | 143679418 |
| 28 | 358784532 |
| 29 | 576016674 |
| 30 | 1418375964 |
| 31 | 2404716730 |
| 32 | 5874191636 |
| 33 | 9227075746 |
[1,2,4,10,20,34,92,186,340,674,1052,2490,5652, 8994,22812,42170,92436,170146,296988,686010, 1107476,2611490,5606172,8995002,22420756,35975330, 89907228,143679418,358784532,576016674,1418375964, 2404716730,5874191636,9227075746] |