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A334536 Lexicographically earliest sequence of distinct positive terms ending in their digital root such that the result of a(n) + a(n+1) also ends in its digital root. 1
1, 2, 3, 4, 5, 91, 6, 92, 7, 181, 8, 271, 93, 94, 95, 182, 96, 183, 184, 185, 272, 97, 361, 98, 451, 186, 273, 274, 275, 362, 187, 452, 276, 363, 364, 365, 453, 366, 541, 188, 631, 277, 542, 367, 632, 454, 455, 543, 456, 633, 544, 545, 634, 635, 721, 278, 811, 368, 901, 457, 722, 546, 723, 636, 812 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Jean-Marc Falcoz, Table of n, a(n) for n = 1..2000

EXAMPLE

a(5) = 5 ends with 5, its digital root;

a(6) = 91 ends with 1, its digital root;

a(5) + a(6) = 96 also ends with its digital root.

CROSSREFS

Cf. A010888, A280658.

Sequence in context: A075832 A037434 A033170 * A097931 A162225 A010348

Adjacent sequences:  A334533 A334534 A334535 * A334537 A334538 A334539

KEYWORD

base,nonn

AUTHOR

Eric Angelini and Jean-Marc Falcoz, May 05 2020

STATUS

approved

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Last modified December 1 16:44 EST 2021. Contains 349430 sequences. (Running on oeis4.)