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| n | a(n) |
|---|---|
| 0 | 24 |
| 1 | 126 |
| 2 | 330 |
| 3 | 738 |
| 4 | 1554 |
| 5 | 3186 |
| 6 | 6450 |
| 7 | 12978 |
| 8 | 26034 |
| 9 | 52146 |
| 10 | 104370 |
| 11 | 208818 |
| 12 | 417714 |
| 13 | 835506 |
| 14 | 1671090 |
| 15 | 3342258 |
| 16 | 6684594 |
| 17 | 13369266 |
| 18 | 26738610 |
| 19 | 53477298 |
| 20 | 106954674 |
| 21 | 213909426 |
| 22 | 427818930 |
| 23 | 855637938 |
| 24 | 1711275954 |
| 25 | 3422551986 |
| 26 | 6845104050 |
| 27 | 13690208178 |
| 28 | 27380416434 |
| 29 | 54760832946 |
| 30 | 109521665970 |
| 31 | 219043332018 |
[24,126,330,738,1554,3186,6450,12978,26034,52146, 104370,208818,417714,835506,1671090,3342258, 6684594,13369266,26738610,53477298,106954674, 213909426,427818930,855637938,1711275954, 3422551986,6845104050,13690208178,27380416434, 54760832946,109521665970,219043332018] |