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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 2 |
| 2 | 12 |
| 3 | 62 |
| 4 | 312 |
| 5 | 1562 |
| 6 | 7812 |
| 7 | 39062 |
| 8 | 195312 |
| 9 | 976562 |
| 10 | 4882812 |
| 11 | 24414062 |
| 12 | 122070312 |
| 13 | 610351562 |
| 14 | 3051757812 |
| 15 | 15258789062 |
| 16 | 76293945312 |
| 17 | 381469726562 |
| 18 | 1907348632812 |
| 19 | 9536743164062 |
| 20 | 47683715820312 |
| 21 | 238418579101562 |
| 22 | 1192092895507812 |
| 23 | 5960464477539062 |
| 24 | 29802322387695312 |
[0,2,12,62,312,1562,7812,39062,195312,976562, 4882812,24414062,122070312,610351562,3051757812, 15258789062,76293945312,381469726562, 1907348632812,9536743164062,47683715820312, 238418579101562,1192092895507812,5960464477539062, 29802322387695312] |