A225590 Primes p such that A217015(p) is a prime number. That is, when applying the walk of a square spiral to the data of rotated-square spiral, on step p a prime number is hit.

2, 11, 17, 23, 53, 61, 67, 139, 149, 151, 163, 251, 263, 269, 281, 397, 421, 431, 541, 547, 557, 607, 619, 743, 773, 809, 1021, 1039, 1229, 1279, 1291, 1303, 1361, 1553, 1601, 1619, 1637, 1871, 1901, 1949, 2003, 2239, 2251, 2267, 2281, 2287, 2309, 2311, 2347, 2381, 2393

Offset

1,1

Comments

Corresponding primes with prime indices, in sorted order: A225754.

Links

Table of n, a(n) for n=1..51.

Crossrefs

Cf. A217015, A217296, A215468, A214526, A225754.

Sequence in context: A243960 A336368 A282509 * A060427 A108894 A233445

Adjacent sequences: A225587 A225588 A225589 * A225591 A225592 A225593

Keyword

nonn

Author

Alex Ratushnyak, May 15 2013

Status

approved