id:A072685 - OEIS Search Results

Search: id:A072685

Displaying 1-1 of 1 results found.

page 1

Positive integers whose English names contain a prime number of letters.

+0
4

1, 2, 3, 6, 7, 8, 10, 15, 16, 23, 27, 28, 33, 37, 38, 40, 50, 60, 70, 74, 75, 79, 83, 87, 88, 93, 97, 98, 104, 105, 109, 111, 112, 120, 124, 125, 129, 130, 134, 135, 139, 143, 147, 148, 153, 157, 158, 163, 167, 168, 171, 172, 176, 180, 184, 185, 189, 190, 194, 195 (list; graph; listen)

	OFFSET	`1,2`
	EXAMPLE	`First value is 1 because 1 -> "ONE" -> 3 letters and 3 is prime. Numbers >100 use naming convention using "and": 199 -> "ONEHUNDREDANDNINETYNINE" -> 23 letters and 23 is prime.`
	CROSSREFS	`Sequence in context: A028768 A064528 A001162 this_sequence A119960 A015841 A031470` `Adjacent sequences: A072682 A072683 A072684 this_sequence A072686 A072687 A072688`
	KEYWORD	`easy,nonn,word`
	AUTHOR	`Mark Hudson (mrmarkhudson(AT)hotmail.com), Jul 02 2002`

page 1

Search completed in 0.002 seconds

Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

AT&T Labs Research