A115946 Primes p(k) such that p(k+1)=p(k)+6, p(k+2)=p(k+1)+6, p(k+3)=p(k+2)+6, p(k+4)=p(k+3)+12, p(k+5)=p(k+4)+12.

206191, 245741, 331141, 369991, 818341, 976471, 1589671, 2091431, 2210291, 3790441, 5194921, 5272441, 6873131, 7109911, 7641311, 8393881, 9153031, 10315801, 10598431, 10640251, 10997081, 11439511, 11568731, 11657281

Offset

1,1

Comments

Give six consecutive primes with gaps 6,6,6,12,12 I found 242 primes like this in the first 22,000,000 primes greatest found is 412276981

Links

Table of n, a(n) for n=1..24.

Example

206191,206197,206203,206209,206221,206233 are consecutive primes with gaps 6,6,6,12,12

Mathematica

Transpose[Select[Partition[Prime[Range[800000]], 6, 1], Differences[#] == {6, 6, 6, 12, 12}&]][[1]] (* Harvey P. Dale, Jan 16 2012 *)

Crossrefs

Sequence in context: A234069 A234061 A234060 * A082176 A178285 A101701

Adjacent sequences: A115943 A115944 A115945 * A115947 A115948 A115949

Keyword

nonn

Author

Pierre CAMI, Mar 14 2006

Status

approved