A114979 Numbers n such that (j^k + k^j) == 0 (mod k+j), j=4 case.

1, 4, 12, 25, 28, 30, 60, 61, 109, 124, 252, 478, 529, 1024, 3273, 6172, 14881, 24700, 28732, 29701, 32509, 41437, 47569, 70009, 83209, 86629, 88177, 99712, 131161, 161473, 172092, 224389, 280869, 281509, 419017, 640129, 691840, 704089, 983641, 1048588

Offset: 1

Author

Zak Seidov, Feb 22 2006

Keywords

• nonn

Comments

a(755) > 10^11. - Hiroaki Yamanouchi, Sep 26 2015

Links

• Hiroaki Yamanouchi, Table of n, a(n) for n = 1..754

Crossrefs

Cf. A114977, A114978, A114980, A114981.

Programs

PARI

isok(k, j=4) = (j^k+k^j) % (k+j) == 0; \\ Michel Marcus, Oct 10 2013

Extensions

a(11)-a(28) from Michel Marcus, Oct 10 2013

a(29)-a(40) from Hiroaki Yamanouchi, Sep 26 2015