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A173972 Primes which are not in A173970 or A173971. 0
11, 31, 37, 41, 43, 61, 67, 71, 83, 89, 97, 101, 107, 127, 131, 137, 139, 151, 163, 167, 179, 181, 191, 193, 199, 251, 271, 277, 281, 293, 307, 311, 313, 317, 331, 347, 359, 367, 379, 383, 389, 397, 401, 421, 431, 433, 443, 449, 457, 461, 463, 467, 479, 487 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..54.

MATHEMATICA

lst={}; Do[p=Prime[n]; If[PrimeQ[2*p-Prime[n+1]], AppendTo[lst, p]], {n, 8!}]; lst1=lst; lst={}; Do[p=Prime[n]; If[PrimeQ[2*p+Prime[n+1]], AppendTo[lst, p]], {n, 8!}]; lst2=lst; Complement[Prime[Range[200]], lst1, lst2]

CROSSREFS

Cf. A173970, A173971.

Sequence in context: A259515 A183845 A022423 * A167488 A298566 A090756

Adjacent sequences:  A173969 A173970 A173971 * A173973 A173974 A173975

KEYWORD

nonn

AUTHOR

Vladimir Joseph Stephan Orlovsky, Mar 03 2010

STATUS

approved

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Last modified January 15 19:15 EST 2021. Contains 340189 sequences. (Running on oeis4.)