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A028359 Two-bell analog of A028355. 5
1, 2, 12, 121, 212, 1212, 12121, 21212, 121212, 1212121, 2121212, 12121212, 121212121, 212121212, 1212121212, 12121212121, 21212121212, 121212121212, 1212121212121, 2121212121212, 12121212121212, 121212121212121, 212121212121212, 1212121212121212, 12121212121212121 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Consider the infinite digits: 121212... . We can break this into a sequence of integers such that the sum of digits in the n-th value is n. - Seiichi Manyama, Oct 31 2018

LINKS

Seiichi Manyama, Table of n, a(n) for n = 1..1500

CROSSREFS

Cf. A000034, A028355.

Sequence in context: A062080 A221279 A165300 * A034524 A051782 A048173

Adjacent sequences:  A028356 A028357 A028358 * A028360 A028361 A028362

KEYWORD

nonn,base

AUTHOR

N. J. A. Sloane

EXTENSIONS

More terms from Seiichi Manyama, Oct 31 2018

STATUS

approved

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Last modified February 21 15:11 EST 2019. Contains 320374 sequences. (Running on oeis4.)