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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 0 |
| 2 | 5 |
| 3 | 100 |
| 4 | 1 |
| 5 | 2040 |
| 6 | 5 |
| 7 | 32740 |
| 8 | 1 |
| 9 | 524280 |
| 10 | 5 |
| 11 | 8388580 |
| 12 | 1 |
| 13 | 134217720 |
| 14 | 5 |
| 15 | 2147483620 |
| 16 | 1 |
| 17 | 34359738360 |
| 18 | 5 |
| 19 | 549755813860 |
| 20 | 1 |
| 21 | 8796093022200 |
| 22 | 5 |
| 23 | 140737488355300 |
| 24 | 1 |
| 25 | 2251799813685240 |
| 26 | 5 |
| 27 | 36028797018963940 |
| 28 | 1 |
| 29 | 576460752303423480 |
| 30 | 5 |
| 31 | 9223372036854775780 |
| 32 | 1 |
[1,0,5,100,1,2040,5,32740,1,524280,5,8388580,1, 134217720,5,2147483620,1,34359738360,5, 549755813860,1,8796093022200,5,140737488355300,1, 2251799813685240,5,36028797018963940,1, 576460752303423480,5,9223372036854775780,1] |