|
| |
|
|
A072599
|
|
Numbers n such that (n!)^2 - p(n) is prime.
|
|
1
| | |
|
|
|
OFFSET
| 1,1
|
|
|
COMMENTS
| Values associated with 16, 109, 116 and 232 certified prime with Primo. These primes have lengths 27, 353, 382 and 900 digits, respectively.
|
|
|
EXAMPLE
| (5!)^2 - prime(5) = 120^2 - 11 = 14400 - 11 = 14389 is prime, so 5 is a term.
|
|
|
PROG
| (PARI) for(n=1, 800, if(isprime((n!)^2-prime(n)), print1(n, ", ")))
|
|
|
CROSSREFS
| Cf. A064769 (n such that (n!)^2 + p(n) is prime).
Sequence in context: A052002 A070916 A078305 * A095138 A026475 A101747
Adjacent sequences: A072596 A072597 A072598 * A072600 A072601 A072602
|
|
|
KEYWORD
| nonn
|
|
|
AUTHOR
| Rick L. Shepherd (rshepherd2(AT)hotmail.com), Jun 25 2002
|
| |
|
|