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A109563 a(n) = If[Floor[2*Mod[(Prime[n + 1] - Prime[n])*PrimePi[n]/n, 8]] == 8, Prime[n]] 0
113, 523, 887, 1129, 1951, 2179, 5531, 5953, 8971, 10009, 10399, 10531, 10909, 13063, 13187, 13933, 13967, 14251, 14983, 16381, 16573 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..20.

MATHEMATICA

a = Flatten[Table[If[Floor[2*Mod[(Prime[n + 1] - Prime[n])*PrimePi[n]/n, 8]] == 9, Prime[n], {}], {n, 1, 2000}]]

CROSSREFS

Cf. A001359.

Sequence in context: A203722 A118506 A341230 * A142024 A300964 A077287

Adjacent sequences:  A109560 A109561 A109562 * A109564 A109565 A109566

KEYWORD

nonn

AUTHOR

Roger L. Bagula, Jun 27 2005

STATUS

approved

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Last modified October 26 08:00 EDT 2021. Contains 348267 sequences. (Running on oeis4.)