A090921 - OEIS

This site is supported by donations to The OEIS Foundation.

The October issue of the Notices of the Amer. Math. Soc. has an article about the OEIS.

A090921

Smallest prime of the form concatenation n, 2n, 3n,...kn and 1.

11, 241, 31, 41, 5101, 61, 71, 8161, 9181, 101, 1122334455661, 12241, 131, 14281, 151, 1632481, 17341, 181, 191, 2040601, 211, 22441, 234669921151, 241, 251 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,1`
	COMMENTS	`Next term a(26) has 116 digits; k = 39 and is too large to include - David Wasserman, Feb 15 2006`
	LINKS	`Table of n, a(n) for n=1..25.`
	CROSSREFS	`Sequence in context: A158297 A296170 A264465 * A089328 A077422 A267642` `Adjacent sequences: A090918 A090919 A090920 * A090922 A090923 A090924`
	KEYWORD	`base,nonn`
	AUTHOR	`Amarnath Murthy, Dec 16 2003`
	EXTENSIONS	`More terms from David Wasserman, Feb 15 2006`
	STATUS	`approved`

License Agreements, Terms of Use, Privacy Policy. .

Last modified September 25 01:17 EDT 2018. Contains 315360 sequences. (Running on oeis4.)