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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 4 |
| 3 | 7 |
| 4 | 9 |
| 5 | 13 |
| 6 | 16 |
| 7 | 20 |
| 8 | 25 |
| 9 | 30 |
| 10 | 36 |
| 11 | 42 |
| 12 | 49 |
| 13 | 56 |
| 14 | 64 |
| 15 | 72 |
| 16 | 81 |
| 17 | 90 |
| 18 | 100 |
| 19 | 110 |
| 20 | 120 |
| 21 | 132 |
| 22 | 143 |
| 23 | 155 |
| 24 | 168 |
| 25 | 181 |
| 26 | 195 |
| 27 | 209 |
| 28 | 224 |
| 29 | 239 |
| 30 | 255 |
| 31 | 271 |
| 32 | 288 |
| 33 | 305 |
| 34 | 323 |
| 35 | 341 |
| 36 | 359 |
| 37 | 379 |
| 38 | 398 |
| 39 | 419 |
| 40 | 439 |
| 41 | 460 |
| 42 | 482 |
| 43 | 504 |
| 44 | 527 |
| 45 | 550 |
| 46 | 574 |
| 47 | 598 |
| 48 | 623 |
| 49 | 648 |
| 50 | 674 |
| 51 | 700 |
| 52 | 727 |
| 53 | 754 |
| 54 | 781 |
| 55 | 810 |
| 56 | 838 |
[1,3,4,7,9,13,16,20,25,30,36,42,49,56,64,72,81,90, 100,110,120,132,143,155,168,181,195,209,224,239, 255,271,288,305,323,341,359,379,398,419,439,460, 482,504,527,550,574,598,623,648,674,700,727,754, 781,810,838] |