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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 7 |
| 3 | 15 |
| 4 | 27 |
| 5 | 47 |
| 6 | 71 |
| 7 | 107 |
| 8 | 151 |
| 9 | 207 |
| 10 | 271 |
| 11 | 355 |
| 12 | 447 |
| 13 | 563 |
| 14 | 691 |
| 15 | 835 |
| 16 | 995 |
| 17 | 1187 |
| 18 | 1391 |
| 19 | 1631 |
| 20 | 1887 |
| 21 | 2167 |
| 22 | 2467 |
| 23 | 2811 |
| 24 | 3171 |
| 25 | 3571 |
| 26 | 3995 |
| 27 | 4455 |
| 28 | 4939 |
| 29 | 5479 |
| 30 | 6035 |
| 31 | 6651 |
| 32 | 7299 |
| 33 | 7987 |
| 34 | 8707 |
| 35 | 9475 |
| 36 | 10267 |
| 37 | 11131 |
| 38 | 12031 |
| 39 | 12979 |
| 40 | 13959 |
| 41 | 15019 |
| 42 | 16103 |
| 43 | 17271 |
| 44 | 18479 |
| 45 | 19735 |
[1,3,7,15,27,47,71,107,151,207,271,355,447,563, 691,835,995,1187,1391,1631,1887,2167,2467,2811, 3171,3571,3995,4455,4939,5479,6035,6651,7299,7987, 8707,9475,10267,11131,12031,12979,13959,15019, 16103,17271,18479,19735] |