A104295 a(n) = A104294(n) - A104293(n).

1, 2, 2, 2, 4, 4, 6, 6, 4, 6, 6, 2, 6, 6, 2, 4, 14, 2, 2, 6, 6, 2, 4, 4, 4, 6, 10, 6, 6, 4, 4, 10, 2, 6, 4, 4, 2, 2, 6, 2, 4, 4, 6, 2, 18, 6, 6, 2, 12

Offset

2,2

Links

Harvey P. Dale, Table of n, a(n) for n = 2..1000

Formula

a(n) = prime((prime(n)+1)/2) - prime((prime(n)-1)/2).

Mathematica

Prime[(#+1)/2]-Prime[(#-1)/2]&/@Prime[Range[2, 50]] (* Harvey P. Dale, Mar 09 2022 *)

Crossrefs

Cf. A104293, A104294.

Sequence in context: A268241 A134318 A246452 * A172068 A289195 A353711

Adjacent sequences: A104292 A104293 A104294 * A104296 A104297 A104298

Keyword

easy,nonn

Author

Zak Seidov, Feb 28 2005

Status

approved