

A071180


Number of numbers m with n < m <= n^2 containing n in decimal representation.


0



0, 0, 0, 1, 2, 3, 4, 5, 7, 1, 10, 11, 11, 11, 12, 12, 12, 13, 13, 13, 14, 13, 15, 15, 16, 16, 17, 17, 18, 18, 19, 19, 19, 21, 21, 22, 23, 34, 34, 35, 36, 37, 38, 36, 39, 40, 41, 42, 43, 45, 55, 56, 57, 58, 56, 60, 61, 63, 64, 66, 76, 77, 79, 80, 81, 78, 84
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OFFSET

1,5


LINKS

Table of n, a(n) for n=1..67.


EXAMPLE

n=21: numbers >21 and <=441=21^2 containing "21": {121, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 221, 321, 421} having size 14, therefore a(21)=14.


CROSSREFS

Sequence in context: A067570 A133303 A152302 * A031225 A085729 A073907
Adjacent sequences: A071177 A071178 A071179 * A071181 A071182 A071183


KEYWORD

nonn,base


AUTHOR

Reinhard Zumkeller, Jun 10 2002


STATUS

approved



