A199004 Position of n-th prime sextuplet A022008(n) among prime 5-tuples A022007.

1, 2, 7, 8, 9, 35, 49, 55, 75, 76, 82, 84, 115, 124, 133, 140, 144, 153, 167, 172, 177, 200, 201, 202, 203, 211, 213, 232, 235, 237, 240, 243, 245, 252, 256, 262, 276, 281, 285, 297, 305, 319, 322, 325, 331, 349, 352, 353, 374, 377, 379, 380, 399, 407, 415

Offset

1,2

Links

Zak Seidov, Table of n, a(n) for n = 1..1000

Formula

A022007(a(n))=A022008(n).

Example

a(3)=7 because A022008(3)=16057=A022007(7),
a(1000)=12091 because A022008(1000)=5054057077=A022007(12091).

Mathematica

lst = {}; cnt = 0; Do[p = Prime[n]; If[PrimeQ[p+4] && PrimeQ[p+6] && PrimeQ[p+10] && PrimeQ[p+12], cnt++; If[PrimeQ[p+16], AppendTo[lst, cnt]]], {n, 10000000}]; lst (* T. D. Noe, Nov 01 2011 *)

Crossrefs

Cf. A022007, A022008.

Sequence in context: A317303 A045980 A104339 * A168064 A243167 A039005

Adjacent sequences: A199001 A199002 A199003 * A199005 A199006 A199007

Keyword

nonn

Author

Zak Seidov, Nov 01 2011

Status

approved