Numbers that have decimal expansion c(1)c(2)...c(n) with distinct digits that satisfy c(1) <> 0, c(1) is the largest digit, and for each i in 1..n there is j in {0, 1} such that c(i) == 2*c(i-1) + j (mod 10) (with c(0): = c(n)).

A336670

Numbers that have decimal expansion c(1)c(2)...c(n) with distinct digits that satisfy c(1) <> 0, c(1) is the largest digit, and for each i in 1..n there is j in {0, 1} such that c(i) == 2*c(i-1) + j (mod 10) (with c(0): = c(n)).

Terms

    a(0) =0a(1) =9a(2) =63a(3) =512a(4) =874a(5) =5012a(6) =7513a(7) =8624a(8) =9874a(9) =62513a(10) =75013a(11) =86374a(12) =98624a(13) =625013a(14) =875124a(15) =986374a(16) =8750124a(17) =9875124a(18) =86251374a(19) =86375124a(20) =87513624a(21) =98750124a(22) =862501374a(23) =863750124a(24) =875013624a(25) =986251374a(26) =986375124a(27) =987513624a(28) =9862501374a(29) =9863750124

External references