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A005248 as a simple table
| n | a(n) |
|---|---|
| 0 | 2 |
| 1 | 3 |
| 2 | 7 |
| 3 | 18 |
| 4 | 47 |
| 5 | 123 |
| 6 | 322 |
| 7 | 843 |
| 8 | 2207 |
| 9 | 5778 |
| 10 | 15127 |
| 11 | 39603 |
| 12 | 103682 |
| 13 | 271443 |
| 14 | 710647 |
| 15 | 1860498 |
| 16 | 4870847 |
| 17 | 12752043 |
| 18 | 33385282 |
| 19 | 87403803 |
| 20 | 228826127 |
| 21 | 599074578 |
| 22 | 1568397607 |
| 23 | 4106118243 |
| 24 | 10749957122 |
| 25 | 28143753123 |
| 26 | 73681302247 |
| 27 | 192900153618 |
| 28 | 505019158607 |
| 29 | 1322157322203 |
[2,3,7,18,47,123,322,843,2207,5778,15127,39603, 103682,271443,710647,1860498,4870847,12752043, 33385282,87403803,228826127,599074578,1568397607, 4106118243,10749957122,28143753123,73681302247, 192900153618,505019158607,1322157322203] |