Unitary phibonacci numbers: solutions k of the equation uphi(k) = uphi(k-1) + uphi(k-2), where uphi(k) is the unitary totient function (A047994).

A292033

Unitary phibonacci numbers: solutions k of the equation uphi(k) = uphi(k-1) + uphi(k-2), where uphi(k) is the unitary totient function (A047994).

Terms

    a(0) =3a(1) =4a(2) =7a(3) =23a(4) =9179a(5) =244967a(6) =14307856a(7) =24571871a(8) =128199059a(9) =140830367a(10) =401767631a(11) =420567856a(12) =468190439a(13) =525970979a(14) =780768167a(15) =886434647a(16) =1597167647a(17) =4046753951a(18) =4473784823a(19) =5364666167a(20) =5515718207a(21) =11175736336a(22) =14408460167a(23) =18026319712a(24) =20106993887a(25) =20357733131

External references