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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 1 |
| 7 | 7 |
| 8 | 21 |
| 9 | 31 |
| 10 | 41 |
| 11 | 87 |
| 12 | 99 |
| 13 | 191 |
| 14 | 245 |
| 15 | 381 |
| 16 | 501 |
| 17 | 735 |
| 18 | 883 |
| 19 | 1309 |
| 20 | 1841 |
| 21 | 2589 |
| 22 | 3435 |
| 23 | 4941 |
| 24 | 6857 |
| 25 | 9791 |
| 26 | 13503 |
| 27 | 19475 |
| 28 | 27073 |
| 29 | 37175 |
| 30 | 52299 |
| 31 | 72249 |
| 32 | 100359 |
| 33 | 139317 |
| 34 | 190549 |
| 35 | 256769 |
| 36 | 355193 |
| 37 | 471963 |
| 38 | 644433 |
| 39 | 858793 |
| 40 | 1159161 |
| 41 | 1530879 |
| 42 | 2056073 |
| 43 | 2711921 |
[1,1,1,1,1,1,1,7,21,31,41,87,99,191,245,381,501, 735,883,1309,1841,2589,3435,4941,6857,9791,13503, 19475,27073,37175,52299,72249,100359,139317, 190549,256769,355193,471963,644433,858793,1159161, 1530879,2056073,2711921] |