Numbers k with at least one nonpalindromic divisor such that the sum of phi(d) = the sum of phi(reverse(d)), where d runs over the divisors of k and phi is the Euler totient function.

A246545

Numbers k with at least one nonpalindromic divisor such that the sum of phi(d) = the sum of phi(reverse(d)), where d runs over the divisors of k and phi is the Euler totient function.

Terms

    a(0) =80a(1) =880a(2) =1920a(3) =3140a(4) =3880a(5) =7305a(6) =8080a(7) =57755a(8) =63405a(9) =88880a(10) =193920a(11) =1188031a(12) =1226221a(13) =1794971a(14) =7966197a(15) =8339125a(16) =13488431a(17) =63007844a(18) =123848321a(19) =165387961a(20) =312256913a(21) =698621186

External references