OFFSET
1,1
LINKS
Michel Marcus, Table of n, a(n) for n = 1..149
PROG
(PARI) lista(nn) = {vp = primes(nn); va = select(x->isprime(x+2), vp); vb = select(x->isprime(x+4), vp); for (n=1, min(#va, #vb), if (vb[n] == va[n]+2, print1(n, ", ")); ); } \\ Michel Marcus, Jul 22 2017
CROSSREFS
KEYWORD
nonn
AUTHOR
Vladimir Shevelev, Mar 06 2010
EXTENSIONS
Terms beyond 29 from R. J. Mathar, Nov 03 2011
Edited by Michel Marcus, Jul 22 2017
STATUS
approved