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, 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

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 25-5-5=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