id:A151971 - OEIS Search Results

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A151971

Numbers n such that n^2 - n is divisible by 21.

+0
1

0, 1, 7, 15, 21, 22, 28, 36, 42, 43, 49, 57, 63, 64, 70, 78, 84, 85, 91, 99, 105, 106, 112, 120, 126, 127, 133, 141, 147, 148, 154, 162, 168, 169, 175, 183, 189, 190, 196, 204, 210, 211, 217, 225, 231, 232, 238, 246, 252, 253, 259, 267, 273, 274, 280, 288, 294, 295, 301, 309 (list; graph; listen)

	OFFSET	`1,3`
	CROSSREFS	`For n^2 == n mod K see: K=3: A032766, K=4: A042948, K=5: A008851, K=6: A032766, K=7: A047274, K=8: A047393, K=9: A090570, K=10: A008851, K=11: A112651, K=12: A112652, K=15: A151972, K=24: A151973, K=30: A151975.` `Sequence in context: A115783 A140109 A064397 this_sequence A014659 A053354 A022552` `Adjacent sequences: A151968 A151969 A151970 this_sequence A151972 A151973 A151974`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Aug 23 2009`

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Last modified March 20 09:10 EDT 2010. Contains 173642 sequences.

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