A317591 - OEIS

A317591

Lexicographically earliest sequence of distinct terms such that erasing the last digit of a(n+1) and adding the resulting integer to a(n) gives back a(n+1).

%I #27 Nov 05 2023 17:40:20

%S 9,10,11,12,13,14,15,16,17,18,19,21,23,25,27,29,32,35,38,42,46,51,56,

%T 62,68,75,83,92,102,113,125,138,153,169,187,207,229,254,282,313,347,

%U 385,427,474,526,584,648,719,798,886,984,1093,1214,1348,1497,1663,1847,2052,2279,2532,2813,3125,3472

%N Lexicographically earliest sequence of distinct terms such that erasing the last digit of a(n+1) and adding the resulting integer to a(n) gives back a(n+1).

%H Charlie Neder, <a href="/A317591/b317591.txt">Table of n, a(n) for n = 1..1000</a> (first 195 terms from _Jean-Marc Falcoz_)

%e a(1) = 9 added to 1 (the reshaped integer 10 without its last digit) is 10;

%e a(2) = 10 added to 1 (the reshaped integer 11 without its last digit) is 11;

%e ...

%K base,nonn

%O 1,1

%A _Eric Angelini_ and _Jean-Marc Falcoz_, Aug 01 2018