cp's OEIS Frontend

A347183 Lexicographically earliest sequence of distinct positive integers such that all digits of a(n) are visible in a(n) + a(n+1).

%I A347183 #9 Aug 23 2021 22:24:38
%S A347183 1,9,10,90,19,72,55,100,900,109,81,27,45,200,802,18,63,73,64,82,46,
%T A347183 118,693,243,99,300,703,334,1000,9000,1009,891,198,621,405,135,180,
%U A347183 630,406,54,91,28,154,261,351,162,450,595,360,270,432,811,207,495,459,36,127,144,297,675,892,397,342
%N A347183 Lexicographically earliest sequence of distinct positive integers such that all digits of a(n) are visible in a(n) + a(n+1).
%C A347183 a(7) = 55 has two digits "5"; they must both be visible in a(7) + a(8) and this is the case as a(7) + a(8) = 55 + 100 = 155.
%e A347183 a(1) + a(2) =  1 +  9 =  10;
%e A347183 a(2) + a(3) =  9 + 10 =  19;
%e A347183 a(3) + a(4) = 10 + 90 = 100;
%e A347183 a(4) + a(5) = 90 + 19 = 109;
%e A347183 a(5) + a(6) = 19 + 72 =  91; etc.
%Y A347183 Cf. A347180, A347181, A347182.
%K A347183 base,nonn
%O A347183 1,2
%A A347183 _Eric Angelini_ and _Carole Dubois_, Aug 22 2021