A100803 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

A100803

A100802(m) where A100802(m) > A100802(m-1).

1, 3, 3, 7, 3, 7, 3, 7, 11, 3, 11, 7, 3, 7, 11, 11, 3, 11, 7, 3, 11, 7, 11, 15, 7, 3, 7, 3, 7, 27, 7, 11, 3, 19, 3, 11, 11, 7, 11, 11, 3, 19, 3, 7, 3, 23, 23, 7, 3, 7, 11, 3, 19, 11, 11, 11, 3, 11, 7, 3, 19, 27, 7, 3, 7, 27, 11, 19, 3, 7, 11, 15, 11, 11, 7, 11, 15, 7, 15, 19, 3, 19, 3, 11

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

LINKS

Table of n, a(n) for n=1..84.

FORMULA

a(n) = A100802(2prime(n)+1) = 2(prime(n+1)-prime(n))-1 = 2*A001223(n)-1.

MATHEMATICA

Table[2*(Prime[n + 1] - Prime[n]) - 1, {n, 100}]

2(Last[#]-First[#])-1&/@Partition[Prime[Range[90]], 2, 1] (* Harvey P. Dale, Jul 28 2012 *)

CROSSREFS

Cf. A100802.