OFFSET
3,1
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 3..87
FORMULA
a(n) = (A139189(n+2) - 3)/4. - R. J. Mathar, May 25 2008
MATHEMATICA
Table[(Prime[n]! - 4)/4, {n, 3, 20}]
PROG
(Magma) [(Factorial(NthPrime(n))-4)/4: n in [3..20]]; // Vincenzo Librandi, Jun 02 2017
(PARI) a(n) = (prime(n)!-4)/4;
lista(nn) = for (n=3, nn, print1(a(n), ", ")); \\ Michel Marcus, Feb 17 2018
CROSSREFS
KEYWORD
nonn
AUTHOR
Artur Jasinski, Apr 11 2008
EXTENSIONS
More terms from R. J. Mathar, May 25 2008
STATUS
approved