The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 4 |
| 2 | 9 |
| 3 | 25 |
| 4 | 49 |
| 5 | 169 |
| 6 | 289 |
| 7 | 361 |
| 8 | 961 |
| 9 | 3721 |
| 10 | 7921 |
| 11 | 11449 |
| 12 | 16129 |
| 13 | 271441 |
| 14 | 368449 |
| 15 | 1635841 |
| 16 | 4853209 |
| 17 | 5202961 |
| 18 | 10349089 |
| 19 | 18088009 |
| 20 | 19562929 |
| 21 | 93876721 |
| 22 | 98823481 |
| 23 | 125731369 |
| 24 | 397483969 |
| 25 | 470933401 |
| 26 | 538657681 |
| 27 | 1979983009 |
| 28 | 7437855049 |
| 29 | 12210913009 |
| 30 | 17436938401 |
| 31 | 46695320281 |
| 32 | 572805271921 |
| 33 | 738625081489 |
[4,9,25,49,169,289,361,961,3721,7921,11449,16129, 271441,368449,1635841,4853209,5202961,10349089, 18088009,19562929,93876721,98823481,125731369, 397483969,470933401,538657681,1979983009, 7437855049,12210913009,17436938401,46695320281, 572805271921,738625081489] |