A071959 Numbers m such that Sum_{i=1..m} K(i,m) = Sum_{i=1..m} K(m,i) where K(x,y) is the Kronecker symbol (x/y).

1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 14, 16, 17, 18, 20, 21, 22, 24, 25, 26, 27, 28, 29, 30, 32, 33, 34, 36, 37, 38, 40, 41, 42, 43, 44, 45, 46, 48, 49, 50, 52, 53, 54, 56, 57, 58, 60, 61, 62, 64, 65, 66, 68, 69, 70, 72, 73, 74, 76, 77, 78, 80, 81, 82, 84, 85, 86, 88, 89, 90, 92

Offset

1,2

Links

Jinyuan Wang, Table of n, a(n) for n = 1..1000

Prog

(PARI) for(n=1, 150, if(sum(i=1, n, kronecker(i, n)) == sum(i=1, n, kronecker(n, i)), print1(n, ", ")))

Crossrefs

Sequence in context: A039268 A039162 A328216 * A176845 A196127 A194467

Adjacent sequences: A071956 A071957 A071958 * A071960 A071961 A071962

Keyword

nonn,easy

Author

Benoit Cloitre, Jun 16 2002

Status

approved