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A163625
Numbers k such that 120*k + 1 is a term in A163573.
2
106, 141, 162, 204, 414, 513, 868, 1911, 2128, 2164, 2220, 2431, 2485, 2592, 2766, 3495, 3529, 3640, 3724, 3927, 4377, 4440, 4495, 4846, 5005, 5530, 5868, 5916, 6531, 7225, 7540, 7567, 7653, 9283, 9612, 9633, 10017, 10159, 10830, 11152, 11538, 12363
OFFSET
1,1
LINKS
FORMULA
a(n) = (A163573(n) - 1)/120.
EXAMPLE
a(1)=106 because 120*106 + 1 = 12721 = A163573(1).
MATHEMATICA
A163573 = {}; Do[p = Prime[n]; If[PrimeQ[(p + 1)/2] && PrimeQ[(p + 2)/3] && PrimeQ[(p + 3)/4], AppendTo[A163573, p]], {n, 2*9!}]; A163573;
Table[(A163573[[n]] - 1)/120, {n, 1, 50}] (* G. C. Greubel, Jul 30 2017 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Zak Seidov, Aug 01 2009
STATUS
approved