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A089590 Uban numbers (the letter u is banned from the English name of the number). 0
1, 2, 3, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 17, 18, 19, 20, 21, 22, 23, 25, 26, 27, 28, 29, 30, 31, 32, 33, 35, 36, 37, 38, 39, 40, 41, 42, 43, 45, 46, 47, 48, 49, 50, 51, 52, 53, 55, 56, 57, 58, 59, 60, 61, 62, 63, 65, 66, 67, 68, 69, 70, 71, 72, 73, 75, 76, 77, 78, 79 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

The sequence of uban numbers first differs from A052406 (the numbers not containing the digit 4) at the term 40 (forty), which is a uban number but is not 4-less.

LINKS

Table of n, a(n) for n=1..71.

Eric Weisstein's World of Mathematics, Uban Number

CROSSREFS

Cf. A006933, A052406, A089589.

Sequence in context: A023839 A004723 A242410 * A052406 A022306 A183298

Adjacent sequences:  A089587 A089588 A089589 * A089591 A089592 A089593

KEYWORD

nonn,easy,word

AUTHOR

Eric W. Weisstein, Nov 09, 2003

STATUS

approved

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Last modified July 31 23:56 EDT 2014. Contains 245102 sequences.