Hankel transform of Euler totient function (A000010).

A056229

Hankel transform of Euler totient function (A000010).

Terms

    a(0) =1a(1) =1a(2) =0a(3) =-4a(4) =64a(5) =-240a(6) =-2656a(7) =15360a(8) =-88064a(9) =-1714176a(10) =-28506112a(11) =59061248a(12) =1975595008a(13) =-107448238080a(14) =858018086912

External references