10-multiplicative persistence: number of iterations of "multiply 10th powers of digits" needed to reach 0 or 1.

A031356

10-multiplicative persistence: number of iterations of "multiply 10th powers of digits" needed to reach 0 or 1.

Terms

    a(0) =0a(1) =2a(2) =2a(3) =2a(4) =3a(5) =2a(6) =3a(7) =2a(8) =2a(9) =1a(10) =1a(11) =2a(12) =2a(13) =2a(14) =3a(15) =2a(16) =3a(17) =2a(18) =2a(19) =1a(20) =2a(21) =2a(22) =2a(23) =2a(24) =2a(25) =3a(26) =3a(27) =2a(28) =2a(29) =1

External references