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| n | a(n) |
|---|---|
| 1 | 4 |
| 2 | 16 |
| 3 | 49 |
| 4 | 124 |
| 5 | 275 |
| 6 | 554 |
| 7 | 1037 |
| 8 | 1831 |
| 9 | 3082 |
| 10 | 4984 |
| 11 | 7789 |
| 12 | 11818 |
| 13 | 17473 |
| 14 | 25250 |
| 15 | 35753 |
| 16 | 49709 |
| 17 | 67984 |
| 18 | 91600 |
| 19 | 121753 |
| 20 | 159832 |
| 21 | 207439 |
| 22 | 266410 |
| 23 | 338837 |
| 24 | 427091 |
| 25 | 533846 |
| 26 | 662104 |
| 27 | 815221 |
| 28 | 996934 |
| 29 | 1211389 |
| 30 | 1463170 |
| 31 | 1757329 |
| 32 | 2099417 |
| 33 | 2495516 |
| 34 | 2952272 |
[4,16,49,124,275,554,1037,1831,3082,4984,7789, 11818,17473,25250,35753,49709,67984,91600,121753, 159832,207439,266410,338837,427091,533846,662104, 815221,996934,1211389,1463170,1757329,2099417, 2495516,2952272] |