A258576 a(n) = A085909(n) - prime(n).

2, 6, 6, 6, 6, 12, 18, 8, 12, 16, 6, 18, 24, 6, 8, 12, 12, 12, 30, 10, 18, 48, 270, 6, 6, 6, 30, 18, 180, 36, 20, 12, 42, 30, 6, 10, 30, 6, 60, 12, 60, 6, 30, 30, 12, 256, 6, 12, 48, 18, 30, 42, 6, 6, 8, 12, 60, 30, 30, 54, 24, 6, 36, 36, 456, 22, 72, 72, 30

Offset

2,1

Comments

Apparently a(n) (and A085909(n)) exists for all n.

Links

Zak Seidov, Table of n, a(n) for n = 2..1000

Example

a(2) = A085909(2)-prime(2) = 5-3 = 2, a(3) = A085909(3)-prime(3) = 11-5 = 6,
a(10^9) = A085909(10^9)-prime(10^9) = 22801763867-22801763489 = 24.

Crossrefs

Cf. A085909, A000040.

Sequence in context: A137479 A304363 A247097 * A278253 A294961 A048765

Adjacent sequences: A258573 A258574 A258575 * A258577 A258578 A258579

Keyword

nonn

Author

Zak Seidov, Jun 04 2015

Status

approved