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A028440 Golc sequence in base 10. Left to right concatenation of n,int(log_10(n)),int(log_10(int(log_10(n)))),... in base 10. 1
10, 20, 30, 40, 50, 60, 70, 80, 90, 101, 111, 121, 131, 141, 151, 161, 171, 181, 191, 201, 211, 221, 231, 241, 251, 261, 271, 281, 291, 301, 311, 321, 331, 341, 351, 361, 371, 381, 391, 401, 411, 421, 431, 441, 451, 461, 471, 481, 491, 501, 511, 521, 531 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..53.

CROSSREFS

Sequence in context: A118959 A273239 A043489 * A166511 A062237 A162467

Adjacent sequences:  A028437 A028438 A028439 * A028441 A028442 A028443

KEYWORD

nonn,base,easy

AUTHOR

Olivier Gérard

STATUS

approved

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Last modified November 20 05:07 EST 2019. Contains 329323 sequences. (Running on oeis4.)