id:A158246 - OEIS Search Results

Search: id:A158246

Displaying 1-1 of 1 results found.

page 1

Positive numbers that have at least one two-letter substring repeated when spelled out in English.

+0
1

17, 22, 27, 33, 44, 55, 66, 75, 77, 88, 91, 99, 101, 103, 109, 117, 119, 121, 122, 123, 127, 129, 131, 133, 139, 141, 143, 144, 149, 151, 153, 155, 159, 161, 163, 166, 169, 171, 173, 175, 177, 179, 181, 183, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Names exclude spaces and hyphens (e.g., onehundredtwentyone).` `Letters in a substring are consecutive. No reversals.` `7878 is the smallest positive number that contains 11 different two-letter substrings repeated in its name.` `3333 is the smallest positive number that contains a two-letter substring repeated 5 times.`
	EXAMPLE	`sevENteEN has the substring "EN" repeated.`
	CROSSREFS	`Sequence in context: A066470 A054478 A136198 this_sequence A002252 A064543 A050712` `Adjacent sequences: A158243 A158244 A158245 this_sequence A158247 A158248 A158249`
	KEYWORD	`easy,nonn,word`
	AUTHOR	`Cihan Altay (cihanaltay(AT)gmail.com), Mar 14 2009`

page 1

Search completed in 0.002 seconds

Last modified November 30 13:13 EST 2009. Contains 167758 sequences.

AT&T Labs Research