The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 4 |
| 2 | 9 |
| 3 | 20 |
| 4 | 31 |
| 5 | 48 |
| 6 | 65 |
| 7 | 86 |
| 8 | 113 |
| 9 | 140 |
| 10 | 173 |
| 11 | 206 |
| 12 | 239 |
| 13 | 286 |
| 14 | 327 |
| 15 | 378 |
| 16 | 425 |
| 17 | 478 |
| 18 | 533 |
| 19 | 590 |
| 20 | 659 |
| 21 | 722 |
| 22 | 793 |
| 23 | 862 |
| 24 | 933 |
| 25 | 1020 |
| 26 | 1099 |
| 27 | 1184 |
| 28 | 1271 |
| 29 | 1360 |
| 30 | 1455 |
| 31 | 1550 |
| 32 | 1655 |
| 33 | 1758 |
| 34 | 1865 |
| 35 | 1976 |
| 36 | 2079 |
| 37 | 2202 |
| 38 | 2319 |
| 39 | 2448 |
| 40 | 2569 |
| 41 | 2694 |
| 42 | 2827 |
| 43 | 2960 |
[1,4,9,20,31,48,65,86,113,140,173,206,239,286,327, 378,425,478,533,590,659,722,793,862,933,1020,1099, 1184,1271,1360,1455,1550,1655,1758,1865,1976,2079, 2202,2319,2448,2569,2694,2827,2960] |