A171748 Primes of the form (2+n)*(1+2*n)+(1+n)*(2+2*n).

17, 67, 149, 263, 409, 587, 797, 1039, 1619, 2729, 3163, 4127, 4657, 5813, 10867, 11717, 13513, 16447, 17489, 20807, 21977, 24413, 25679, 28307, 29669, 31063, 35437, 40099, 50287, 53939, 55813, 57719, 61627, 63629, 69827, 78539, 90149

Offset

1,1

Links

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

Example

17=(1+2)*3+(1+3)*2.

Mathematica

f[n_]:=(2+n)*(1+2*n)+(1+n)*(2+2*n); lst={}; Do[If[PrimeQ[f[n]], AppendTo[lst, f[n]]], {n, 6!}]; lst

Crossrefs

Sequence in context: A180529 A214032 A039452 * A141940 A294516 A209078

Adjacent sequences: A171745 A171746 A171747 * A171749 A171750 A171751

Keyword

nonn

Author

Vladimir Joseph Stephan Orlovsky, Dec 17 2009

Status

approved