Consider a decimal number of k>=2 digits x = d_(k)*10^(k-1) + d_(k-1)*10^(k-2) + … + d_(2)*10 + d_(1) and the transform T(x)-> (d_(k)+d_(k-1) mod 10)*10^(k-1) + (d_(k-1)+d_(k-2) mod 10)*10^(k-2) + … + (d_(2)+d_(1) mod 10)*10 + (d_(1)+d(k) mod 10). Sequence lists the numbers x such that T(x)=0.
A243994
Consider a decimal number of k>=2 digits x = d_(k)*10^(k-1) + d_(k-1)*10^(k-2) + … + d_(2)*10 + d_(1) and the transform T(x)-> (d_(k)+d_(k-1) mod 10)*10^(k-1) + (d_(k-1)+d_(k-2) mod 10)*10^(k-2) + … + (d_(2)+d_(1) mod 10)*10 + (d_(1)+d(k) mod 10). Sequence lists the numbers x such that T(x)=0.
Terms
- a(0) =19a(1) =28a(2) =37a(3) =46a(4) =55a(5) =64a(6) =73a(7) =82a(8) =91a(9) =191a(10) =282a(11) =373a(12) =464a(13) =555a(14) =646a(15) =737a(16) =828a(17) =919a(18) =1919a(19) =2828a(20) =3737a(21) =4646a(22) =5555a(23) =6464a(24) =7373a(25) =8282a(26) =9191a(27) =19191a(28) =28282a(29) =37373
External references
- oeis: A243994