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A280616
Smallest m such that the m - s is a prime for exactly n distinct squarefree numbers s.
0
3, 4, 9, 8, 16, 18, 26, 32, 24, 36, 42, 44, 48, 66, 70, 60, 74, 72, 94, 106, 84, 90, 102, 112, 130, 108, 126, 114, 166, 160, 150, 144, 184, 218, 174, 208, 168, 220, 138, 222, 232, 204, 216, 262, 302, 268, 234, 252, 246, 240, 264, 276, 306, 270, 340, 318, 294, 312, 342, 336, 406, 330, 324
OFFSET
1,1
EXAMPLE
a(1) = 3 because 3 - 1 = 2 is prime where 1 is squarefree number.
a(2) = 4 because 4 - 1 = 3 and 4 - 2 = 2 are primes where 1 and 2 are squarefree numbers.
a(3) = 9 because 9 - 2 = 7, 9 - 6 = 3, 9 - 7 = 2 are primes where 2, 6, 7 are squarefree numbers.
CROSSREFS
KEYWORD
nonn
AUTHOR
STATUS
approved