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A022513 Describe previous term from the right (method A - initial term is 9). 19
9, 19, 1911, 211911, 21192112, 122112192112, 122112191112212211, 2122112231191112212211, 21221122311921132221221112, 12312211321321121921132221221112 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

Method A = 'frequency' followed by 'digit'-indication.

LINKS

Table of n, a(n) for n=0..9.

EXAMPLE

E.g., the term after 1911 is obtained by saying "two 1's, one 9, one 1", which gives 211911.

CROSSREFS

Cf. A005150, A022506, A006711, A022482, A022507-A022512.

Sequence in context: A001154 A177368 A138493 * A156746 A064266 A284053

Adjacent sequences:  A022510 A022511 A022512 * A022514 A022515 A022516

KEYWORD

nonn,base,easy,nice

AUTHOR

N. J. A. Sloane

EXTENSIONS

More terms from Erich Friedman

STATUS

approved

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Last modified January 24 16:47 EST 2020. Contains 331209 sequences. (Running on oeis4.)