a(n) is the smallest number k for which the width n at the diagonal is one smaller than the maximum width of the symmetric representation of sigma(k).

A338536

a(n) is the smallest number k for which the width n at the diagonal is one smaller than the maximum width of the symmetric representation of sigma(k).

Terms

    a(0) =18a(1) =60a(2) =900a(3) =360a(4) =1800a(5) =3360a(6) =14400a(7) =5040a(8) =44100a(9) =15120a(10) =508032a(11) =27720a(12) =396900a(13) =98280

External references