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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 3 |
| 3 | 6 |
| 4 | 11 |
| 5 | 19 |
| 6 | 30 |
| 7 | 44 |
| 8 | 68 |
| 9 | 112 |
| 10 | 176 |
| 11 | 271 |
| 12 | 411 |
| 13 | 602 |
| 14 | 851 |
| 15 | 1232 |
| 16 | 1783 |
| 17 | 2530 |
| 18 | 3567 |
| 19 | 4996 |
| 20 | 6838 |
| 21 | 9279 |
| 22 | 12463 |
| 23 | 16597 |
| 24 | 21848 |
| 25 | 28227 |
| 26 | 35682 |
| 27 | 44464 |
| 28 | 54597 |
| 29 | 65966 |
| 30 | 78433 |
| 31 | 91725 |
| 32 | 104896 |
| 33 | 116966 |
| 34 | 126335 |
| 35 | 131998 |
| 36 | 133107 |
| 37 | 128720 |
| 38 | 119332 |
| 39 | 106335 |
| 40 | 91545 |
| 41 | 75742 |
| 42 | 60119 |
| 43 | 45840 |
| 44 | 33422 |
| 45 | 23223 |
| 46 | 15140 |
| 47 | 9094 |
| 48 | 5073 |
| 49 | 2605 |
| 50 | 1224 |
| 51 | 528 |
| 52 | 225 |
| 53 | 75 |
| 54 | 20 |
| 55 | 2 |
[1,2,3,6,11,19,30,44,68,112,176,271,411,602,851, 1232,1783,2530,3567,4996,6838,9279,12463,16597, 21848,28227,35682,44464,54597,65966,78433,91725, 104896,116966,126335,131998,133107,128720,119332, 106335,91545,75742,60119,45840,33422,23223,15140, 9094,5073,2605,1224,528,225,75,20,2] |