Numbers n such that sigma(Rev(phi(n))) = phi(Rev(sigma(n))), where sigma is the sum of divisors and phi the Euler totient function.

A252255

Numbers n such that sigma(Rev(phi(n))) = phi(Rev(sigma(n))), where sigma is the sum of divisors and phi the Euler totient function.

Terms

    a(0) =1a(1) =14a(2) =61a(3) =966a(4) =1428a(5) =9174a(6) =15642a(7) =19934a(8) =22155a(9) =27075a(10) =36650a(11) =48731a(12) =51095a(13) =54184a(14) =57902a(15) =59711a(16) =61039a(17) =89276a(18) =98645a(19) =113080a(20) =126850a(21) =140283a(22) =142149a(23) =154670a(24) =165822a(25) =190908a(26) =197705a(27) =198712a(28) =202096a(29) =203107

External references