A241245 Primes obtained by merging 4 successive digits in decimal expansion of sqrt (5).

6067, 7499, 8969, 4091, 9173, 8731, 5209, 9941, 2749, 4969, 5081, 5077, 4253, 2677, 4447, 3863, 2153, 7817, 3191, 9187, 1879, 6581, 8053, 1753, 5003, 2339, 9241, 3253, 2539, 2887, 6299, 8161, 7759, 2371, 3907, 7297, 8641, 2689, 4099, 3169, 1693, 7019, 7541, 5413

Offset: 1

Author

K. D. Bajpai, Apr 18 2014

Keywords

• nonn
• base

Comments

All the terms in the sequence are 4-digit primes because leading zeros are not permitted.

Links

• K. D. Bajpai, Table of n, a(n) for n = 1..1514

Crossrefs

Cf. A198161, A198162, A198163, A198164, A198165, A198166, A198169, A241149.

Programs

Mathematica

With[{s5=FromDigits/@Partition[RealDigits[Sqrt[5],10,500][[1]],4,1]}, Select[ s5,IntegerLength[#]==4&&PrimeQ[#]&]] (* Harvey P. Dale, Mar 25 2018 *)

Extensions

Mathematica program corrected by Harvey P. Dale, Mar 25 2018