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 A096522 Solutions to A096520[x]=0, that is in neighborhood with c=2^x center and r=Ceiling[Log[2^x]] no prime occurs. 1
 25, 27, 34, 35, 45, 49, 59, 62, 65, 97, 99, 103, 106, 113, 120, 139, 142, 169, 176, 181, 183, 185, 186, 208, 215, 216, 223, 227, 232, 237, 256, 259, 267, 269, 293, 298, 302, 309, 332, 333, 334, 340, 349, 358, 361, 362, 364, 371, 373, 381, 387, 403, 426, 433 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS MATHEMATICA {ta=Table[0, {1000}], u=1}; Do[s=Count[Table[PrimeQ[2^n+i], {i, -Ceiling[Log[2^n]//N], Ceiling[Log[2^n]//N]}], True]; If[Equal[s, 0], Print[{n, s}]; ta[[u]]=n; u=u+1], {n, 1, 1000}]; ta CROSSREFS Cf. A096509-A096521. Sequence in context: A287763 A239523 A129820 * A195351 A015734 A221617 Adjacent sequences: A096519 A096520 A096521 * A096523 A096524 A096525 KEYWORD nonn AUTHOR Labos Elemer, Jul 12 2004 STATUS approved

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Last modified December 2 10:01 EST 2022. Contains 358493 sequences. (Running on oeis4.)