Numbers m such that sigma(m) / tau(m) = sigma(m - 1) / tau(m - 1) + sigma(m + 1) / tau(m + 1).

A347077

Numbers m such that sigma(m) / tau(m) = sigma(m - 1) / tau(m - 1) + sigma(m + 1) / tau(m + 1).

Terms

    a(0) =15063a(1) =18519a(2) =49841a(3) =137607a(4) =179943a(5) =203345a(6) =412763a(7) =421307a(8) =517334a(9) =881851a(10) =1102204a(11) =2003233a(12) =2831435a(13) =3869018a(14) =17378593a(15) =76645063a(16) =107594182a(17) =118012619a(18) =190791881a(19) =418588841a(20) =447287713a(21) =475734745a(22) =632799289a(23) =661709127a(24) =664171759a(25) =900701138a(26) =998754443a(27) =1756922665

External references