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A210416 List the positions of all digits 2 in the concatenation of all terms, not necessarily in order. This is the lexicographically earliest such sequence. 5
2, 20, 1, 6, 21, 9, 22, 10, 15, 23, 19, 222, 220, 25, 27, 29, 32, 35, 200, 40, 201, 45, 202, 47, 52, 203, 51, 59, 204, 64, 205, 69, 206, 74, 207, 79, 208, 84, 209, 89, 210, 94, 211, 99, 212, 101, 108, 213, 114, 214, 120, 215, 118, 127, 132, 216, 131, 141, 217 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

See A210415 for comments, links, and code.

See A098670 for a variant with increasing terms. - M. F. Hasler, Oct 08 2013

LINKS

Danny Rorabaugh, Table of n, a(n) for n = 1..1000

EXAMPLE

The sequence starts with 2: Second digit equal to 2. In the second position we cannot write only 2 because the first number is already 2. Then the minimum number greater than 2 and beginning with digit 2 is 20. In third position we can write 1 because digit in first position is 2. And so on.

CROSSREFS

Cf. A098670, A210414-A210423.

Sequence in context: A306207 A073444 A301637 * A220943 A082259 A077339

Adjacent sequences:  A210413 A210414 A210415 * A210417 A210418 A210419

KEYWORD

nonn,base

AUTHOR

Paolo P. Lava, Mar 26 2012

STATUS

approved

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Last modified October 19 21:28 EDT 2019. Contains 328244 sequences. (Running on oeis4.)