Numbers n such that phi(n) + sigma(n) = reversal(n) - 4.

A230005

Numbers n such that phi(n) + sigma(n) = reversal(n) - 4.

Terms

    a(0) =489a(1) =4629a(2) =296206a(3) =460029a(4) =29589106a(5) =46000029a(6) =2927272726a(7) =4045046518a(8) =21223345084a(9) =29600331295a(10) =296151515206a(11) =460000000029

External references