

A124196


Natural numbers, but with every number containing the decimal digit 5 replaced by the number that would normally have occurred minus 5 times the number of 5's (as digits) that would have normally already occurred before that number.


0



0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 10, 16, 17, 18, 19, 20, 21, 22, 23, 24, 15, 26, 27, 28, 29, 30, 31, 32, 33, 34, 20, 36, 37, 38, 39, 40, 41, 42, 43, 44, 25, 46, 47, 48, 49, 25, 21, 17, 13, 9, 5, 1, 3, 7, 11, 60, 61, 62, 63, 64, 10, 66, 67, 68, 69, 70, 71, 72, 73, 74, 5, 76, 77, 78, 79, 80, 81, 82, 83, 84, 0, 86, 87, 88
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OFFSET

1,3


LINKS

Table of n, a(n) for n=1..89.


EXAMPLE

E.g. by 15, 5 should have occurred once, therefore the entry is 15  5 = 10
By 25, 5 should have occurred twice, therefore 2555=15
By 35, 5 should have occurred three times, therefore 35(5*3)=20.


CROSSREFS

Sequence in context: A043274 A318891 A318890 * A293704 A322021 A295888
Adjacent sequences: A124193 A124194 A124195 * A124197 A124198 A124199


KEYWORD

sign,base,less


AUTHOR

Sean Mitchell (mr_ufm(AT)hotmail.com), Dec 06 2006


EXTENSIONS

Corrected and extended by Olaf Voß, Feb 11 2008


STATUS

approved



