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A052937 as a simple table
| n | a(n) |
|---|---|
| 0 | 2 |
| 1 | 3 |
| 2 | 6 |
| 3 | 13 |
| 4 | 30 |
| 5 | 71 |
| 6 | 170 |
| 7 | 409 |
| 8 | 986 |
| 9 | 2379 |
| 10 | 5742 |
| 11 | 13861 |
| 12 | 33462 |
| 13 | 80783 |
| 14 | 195026 |
| 15 | 470833 |
| 16 | 1136690 |
| 17 | 2744211 |
| 18 | 6625110 |
| 19 | 15994429 |
| 20 | 38613966 |
| 21 | 93222359 |
| 22 | 225058682 |
| 23 | 543339721 |
| 24 | 1311738122 |
| 25 | 3166815963 |
| 26 | 7645370046 |
| 27 | 18457556053 |
| 28 | 44560482150 |
| 29 | 107578520351 |
| 30 | 259717522850 |
[2,3,6,13,30,71,170,409,986,2379,5742,13861,33462, 80783,195026,470833,1136690,2744211,6625110, 15994429,38613966,93222359,225058682,543339721, 1311738122,3166815963,7645370046,18457556053, 44560482150,107578520351,259717522850] |