A022509 Describe previous term from the right (method A - initial term is 5).

5, 15, 1511, 211511, 21152112, 122112152112, 122112151112212211, 2122112231151112212211, 21221122311521132221221112, 12312211321321121521132221221112

Offset

0,1

Comments

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

Links

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

Example

The term after 1511 is obtained by saying "two 1's, one 5, one 1", which gives 211511.

Crossrefs

Cf. A022506, A006711, A022482, A022507-A022513.

Sequence in context: A001141 A177364 A138489 * A138074 A174676 A302062

Adjacent sequences: A022506 A022507 A022508 * A022510 A022511 A022512

Keyword

nonn,base,easy,nice

Author

N. J. A. Sloane

Extensions

More terms from Erich Friedman

Status

approved