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A133764 Composite numbers such that any two terms, plus 1, yields a composite number:. 0

%I

%S 4,9,10,15,16,22,28,34,35,39,40,46,52,58,64,70,75,76,82,88,94,100,106,

%T 112,118,119,124,125,130,136,142,148,154,160,166,172,178,184,190,196,

%U 202,208,209,214,220,226,232,238,244,249,250,256,262,268,274,279,280

%N Composite numbers such that any two terms, plus 1, yields a composite number:.

%e 15 is a term of the sequence because 15 is composite and 15+4+1, 15+9+1 and 15+10+1, are all composite (20,25 and 36, respectively).

%K easy,nonn

%O 1,1

%A _Randy L. Ekl_, Jan 01 2008

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Last modified October 18 03:25 EDT 2021. Contains 348065 sequences. (Running on oeis4.)