id:A067790 - OEIS Search Results

Search: id:A067790

Displaying 1-1 of 1 results found.

page 1

Numbers n such that n and prime(n) end with the same digit.

+0
1

7, 11, 23, 29, 37, 103, 107, 109, 121, 141, 143, 149, 153, 169, 183, 187, 189, 209, 213, 217, 221, 239, 243, 247, 249, 271, 273, 277, 289, 291, 293, 299, 307, 309, 321, 331, 351, 367, 379, 381, 407, 413, 431, 449, 453, 469, 489, 497, 499, 501, 503, 513, 519 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`prime(973)=7673 hence 973 is in the sequence`
	FORMULA	`It seems that a(n) is asymptotic to 10n and that a(n) = 10n + O(sqrt(n)) (i.e. (a(n)-10n)/sqrt(n) is bounded ).`
	CROSSREFS	`Sequence in context: A103667 A033207 A095084 this_sequence A089056 A082496 A107133` `Adjacent sequences: A067787 A067788 A067789 this_sequence A067791 A067792 A067793`
	KEYWORD	`easy,nonn,base`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Mar 07 2002`

page 1

Search completed in 0.002 seconds

Last modified December 10 00:48 EST 2009. Contains 170565 sequences.

AT&T Labs Research