Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
for 
value up to 12.| a(g,n) | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| 1 | 1 | 2 | 1 | ||||||||
| 2 | 17 | 160 | 566 | 1004 | 961 | 476 | 96 | ||||
| 3 | 1259 | 23482 | 176303 | 727936 | 1868651 | 3156754 | 3584897 | ||||
| 4 | 200589 | 5850396 | 70846128 | 487848188 | 2176440862 | ||||||
| 5 | 54766516 | 2229417608 | 38374062358 | ||||||||
| 6 | 22839203295 |
