DoubleFactorial - crowlogic/arb4j GitHub Wiki

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    | n | Double Factorial (2n-1)!!| Factorization                           |
    |========================================================================|
 1. | 01| 1                        | 1                                       |
 2. | 02| 1                        | 1                                       |
 3. | 03| 3                        | 3                                       |
 4. | 04| 15                       | 3 * 5                                   |
 5. | 05| 105                      | 3 * 5 * 7                               |
 6. | 06| 945                      | 3^3 * 5 * 7                             |
 7. | 07| 10395                    | 3^3 * 5 * 7 * 11                        |
 8. | 08| 135135                   | 3^3 * 5 * 7 * 11 * 13                   |
 9. | 09| 2027025                  | 3^4 * 5^2 * 7 * 11 * 13                 |
10. | 10| 34459425                 | 3^4 * 5^2 * 7 * 11 * 13 * 17            |
11. | 11| 654729075                | 3^4 * 5^2 * 7 * 11 * 13 * 17 * 19       |
12. | 12| 13749310575              | 3^5 * 5^2 * 7^2 * 11 * 13 * 17 * 19     |
13. | 13| 316234143225             | 3^5 * 5^2 * 7^2 * 11 * 13 * 17 * 19 * 23|
14. | 14| 7905853580625            | 3^5 * 5^4 * 7^2 * 11 * 13 * 17 * 19 * 23|
15. | 15| 213458046676875          | 3^8 * 5^4 * 7^2 * 11 * 13 * 17 * 19 * 23|