Composite numbers k such that P(k, 5) == 5 (mod k), where P(k, 5) = A006442(k) is the k-th Legendre polynomial evaluated at 5.

A330204

Composite numbers k such that P(k, 5) == 5 (mod k), where P(k, 5) = A006442(k) is the k-th Legendre polynomial evaluated at 5.

Terms

    a(0) =4a(1) =15a(2) =35a(3) =165a(4) =255a(5) =615a(6) =1815a(7) =1876a(8) =2636a(9) =2948a(10) =5380a(11) =5565a(12) =11235a(13) =28545a(14) =288380a(15) =903644a(16) =1807995a(17) =2486165a(18) =2674060a(19) =10538572a(20) =11791595a(21) =14145121a(22) =28558415a(23) =45153277a(24) =45682751

External references