A347183 - OEIS

A347183

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

1, 9, 10, 90, 19, 72, 55, 100, 900, 109, 81, 27, 45, 200, 802, 18, 63, 73, 64, 82, 46, 118, 693, 243, 99, 300, 703, 334, 1000, 9000, 1009, 891, 198, 621, 405, 135, 180, 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

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OFFSET

1,2

COMMENTS

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.

LINKS

Table of n, a(n) for n=1..63.

EXAMPLE

a(1) + a(2) = 1 + 9 = 10;

a(2) + a(3) = 9 + 10 = 19;

a(3) + a(4) = 10 + 90 = 100;

a(4) + a(5) = 90 + 19 = 109;