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A232010
Numbers k such that p^2 + k is composite for all prime p.
3
5, 11, 17, 21, 23, 26, 29, 31, 35, 41, 45, 47, 51, 53, 56, 59, 61, 65, 68, 71, 73, 77, 81, 83, 86, 87, 89, 91, 95, 101, 107, 110, 111, 113, 115, 116, 117, 119, 121, 125, 129, 131, 134, 137, 139, 141, 143, 146, 149, 151, 152, 155, 157, 161, 165, 167, 171, 173, 176
OFFSET
1,1
COMMENTS
Primes from this sequence are in A067775.
Complement of A232012.
FORMULA
A232009(a(n)) = 0.
EXAMPLE
7 is not in the sequence because 2^2 + 7 = 11 (prime).
CROSSREFS
KEYWORD
nonn
AUTHOR
Jaroslav Krizek, Nov 20 2013
STATUS
approved