A259311 - OEIS

A259311

First differences of A098058.

1, 2, 6, 6, 6, 6, 2, 10, 6, 6, 6, 2, 10, 2, 10, 18, 6, 6, 18, 6, 2, 10, 2, 6, 10, 6, 6, 2, 10, 6, 30, 6, 6, 2, 10, 6, 6, 6, 2, 10, 2, 10, 18, 6, 14, 6, 10, 6, 14, 6, 10, 26, 10, 2, 10, 2, 10, 18, 42, 18, 2, 18, 6, 10, 6, 6, 2, 6, 10, 6, 6, 2, 6, 10

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

OFFSET

1,2

COMMENTS

No term is divisible by 4, see comments in A098058.

LINKS

Table of n, a(n) for n=1..74.

FORMULA

a(n) = A098058(n+1)-A098058(n).

PROG

(PARI) lista(n) = for(x=1, n, z=(prime(x+1)-prime(x)); if(z%4, print1(z, ", "))) \\ Michel Marcus, Jun 24 2015

CROSSREFS

Cf. A098058.

Sequence in context: A284121 A198102 A097466 * A141624 A134413 A134201

Adjacent sequences: A259308 A259309 A259310 * A259312 A259313 A259314

KEYWORD

nonn

AUTHOR

Zak Seidov, Jun 24 2015

STATUS

approved