1,3
Table of n, a(n) for n=1..14.
n=5 is here because 3*5!-1=359 is a prime.
for n from 0 to 1000 do if isprime(3*n! - 1) then print(n) end if end do;
Cf. A051915, A076134.
Sequence in context: A084542 A038201 A033084 * A101526 A140298 A107365
Adjacent sequences: A076131 A076132 A076133 * A076135 A076136 A076137
nonn
Phillip L. Poplin (plpoplin(AT)bellsouth.net), Oct 30 2002
approved
