A Wallis pair (x,y) satisfies sigma(x^2) = sigma(y^2); sequence gives x's for indecomposable Wallis pairs with x < y (ordered by values of x).

A075768

A Wallis pair (x,y) satisfies sigma(x^2) = sigma(y^2); sequence gives x's for indecomposable Wallis pairs with x < y (ordered by values of x).

Terms

    a(0) =4a(1) =326a(2) =406a(3) =627a(4) =740a(5) =880a(6) =888a(7) =1026a(8) =1110a(9) =1284a(10) =1510a(11) =1528a(12) =2013a(13) =2072a(14) =3216a(15) =3260a(16) =3912a(17) =4866a(18) =4946a(19) =5064a(20) =5064a(21) =5829a(22) =7248a(23) =9768a(24) =10536a(25) =10686a(26) =11836a(27) =12122a(28) =13066a(29) =13398

External references