OFFSET
1,1
COMMENTS
Primes of the form p-1, p-2 and p+2 for p prime. - Juri-Stepan Gerasimov, Apr 30 2010
Numbers n such that A283265(n) = 0. - Mats Granvik, Mar 18 2017
LINKS
Michael De Vlieger, Table of n, a(n) for n = 1..10000
MATHEMATICA
Union@ Flatten@ Select[Partition[#, 2, 1] &@ Prime@ Range@ 117, First@ Differences@ # <= 2 &] (* Michael De Vlieger, Mar 18 2017 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Juri-Stepan Gerasimov, Dec 19 2009
EXTENSIONS
Entries checked by D. S. McNeil, Nov 26 2010
STATUS
approved