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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 3 |
| 3 | 7 |
| 4 | 11 |
| 5 | 16 |
| 6 | 22 |
| 7 | 30 |
| 8 | 38 |
| 9 | 47 |
| 10 | 57 |
| 11 | 69 |
| 12 | 81 |
| 13 | 94 |
| 14 | 108 |
| 15 | 123 |
| 16 | 140 |
| 17 | 157 |
| 18 | 175 |
| 19 | 194 |
| 20 | 214 |
| 21 | 235 |
| 22 | 258 |
| 23 | 281 |
| 24 | 305 |
| 25 | 330 |
| 26 | 356 |
| 27 | 383 |
| 28 | 411 |
| 29 | 440 |
| 30 | 471 |
| 31 | 502 |
| 32 | 534 |
| 33 | 567 |
| 34 | 601 |
| 35 | 636 |
| 36 | 672 |
| 37 | 709 |
| 38 | 748 |
| 39 | 787 |
| 40 | 827 |
| 41 | 868 |
| 42 | 910 |
| 43 | 953 |
| 44 | 997 |
| 45 | 1042 |
| 46 | 1088 |
| 47 | 1136 |
| 48 | 1184 |
| 49 | 1233 |
| 50 | 1283 |
| 51 | 1334 |
| 52 | 1386 |
| 53 | 1439 |
[0,1,3,7,11,16,22,30,38,47,57,69,81,94,108,123, 140,157,175,194,214,235,258,281,305,330,356,383, 411,440,471,502,534,567,601,636,672,709,748,787, 827,868,910,953,997,1042,1088,1136,1184,1233,1283, 1334,1386,1439] |