A088963 Primes p such that 5p is the hypotenuse belonging to two prime-free primitive Pythagorean triples.

13, 37, 41, 61, 73, 89, 97, 101, 109, 113, 149, 157, 173, 181, 193, 197, 229, 233, 241, 257, 269, 277, 293, 313, 317, 337, 349, 353, 373, 389, 397, 401, 409, 421, 433, 457, 461, 509, 521, 541, 557, 569, 577, 593, 601, 613, 617, 641, 653, 661, 673, 677, 701

Offset

1,1

Comments

Subsequence of A002144.

Links

Table of n, a(n) for n=1..53.

Example

41 is in the sequence because 5*41=205 appears in the two prime-free primitive Pythagorean triangles: (123^2 + 164^2 = 205^2),(133^2 + 156^2 = 205^2).

Crossrefs

Sequence in context: A118361 A264908 A281004 * A301591 A301857 A220462

Adjacent sequences: A088960 A088961 A088962 * A088964 A088965 A088966

Keyword

nonn

Author

Lekraj Beedassy, Oct 28 2003

Extensions

More terms from Ray Chandler, Oct 31 2003

Status

approved