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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 4 |
| 2 | 36 |
| 3 | 184 |
| 4 | 592 |
| 5 | 1828 |
| 6 | 4164 |
| 7 | 9360 |
| 8 | 18592 |
| 9 | 34948 |
| 10 | 59636 |
| 11 | 102096 |
| 12 | 161496 |
| 13 | 255700 |
| 14 | 385292 |
| 15 | 562336 |
| 16 | 796344 |
| 17 | 1131996 |
| 18 | 1552780 |
| 19 | 2133368 |
| 20 | 2855632 |
| 21 | 3765492 |
| 22 | 4876444 |
| 23 | 6328104 |
| 24 | 8049744 |
| 25 | 10203820 |
| 26 | 12766508 |
| 27 | 15870744 |
| 28 | 19496392 |
| 29 | 23984444 |
| 30 | 29090340 |
| 31 | 35318968 |
| 32 | 42535496 |
| 33 | 50936036 |
[0,4,36,184,592,1828,4164,9360,18592,34948,59636, 102096,161496,255700,385292,562336,796344,1131996, 1552780,2133368,2855632,3765492,4876444,6328104, 8049744,10203820,12766508,15870744,19496392, 23984444,29090340,35318968,42535496,50936036] |