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A301743

Lexicographically first sequence with no duplicate term whose digits' concatenation is the same as the digits' concatenation of all sums of adjacent terms lined up one by one.

1, 109, 878, 8, 6, 14, 20, 3, 4, 2, 37, 63, 9, 100, 7, 210, 910, 72, 17, 11, 209, 82, 89, 28, 220, 29, 117, 111, 724, 824, 91, 46, 22, 88, 35, 15, 48, 915, 13, 76, 81, 10, 12, 350, 639, 6392, 889, 157, 912, 23, 62, 98, 970, 31, 728, 110, 4610, 69, 93, 5, 85, 160, 106, 8100, 175, 983, 84, 720, 467, 916, 298, 90, 24

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OFFSET

1,2

COMMENTS

This sequence is conjectured to be a permutation of A000027 (the positive numbers).

LINKS

Lars Blomberg, Table of n, a(n) for n = 1..10000

EXAMPLE

1 + 109 = 110

109 + 878 = 987

878 + 8 = 886

8 + 6 = 14