A280082 Record gaps between prime-indexed primes.

2, 6, 14, 18, 26, 30, 36, 48, 92, 112, 114, 122, 150, 168, 190, 348, 372, 384, 458, 474, 498, 642, 738, 1028, 1244, 1380, 1500, 1766, 1784, 1800, 1852, 1998, 2200, 2280, 2628, 2992, 3000

Offset

1,1

Links

Table of n, a(n) for n=1..37.

Example

a(4) = 18 because the next prime-indexed prime after 41 is 59, and that is a record gap of size 18.

Mathematica

Union@ Rest@ FoldList[Max, 0, Differences@ Array[Prime@ Prime@ # &, 10^6]] (* Michael De Vlieger, Dec 25 2016 *)

Crossrefs

Cf. A006450, A280080, A280081.

Sequence in context: A032483 A057214 A196445 * A139269 A186299 A163777

Adjacent sequences: A280079 A280080 A280081 * A280083 A280084 A280085

Keyword

nonn

Author

Bobby Jacobs, Dec 25 2016

Status

approved