id:A100781 - OEIS Search Results

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Triangle read by rows: n-th row contains n multiples of n not occurring earlier all even if n is even else all odd.

+0
5

1, 2, 4, 3, 9, 15, 8, 12, 16, 20, 5, 25, 35, 45, 55, 6, 18, 24, 30, 36, 42, 7, 21, 49, 63, 77, 91, 105, 32, 40, 48, 56, 64, 72, 80, 88, 27, 81, 99, 117, 135, 153, 171, 189, 207, 10, 50, 60, 70, 90, 100, 110, 120, 130, 140, 11, 33, 121, 143, 165, 187, 209, 231, 253, 275, 297 (list; table; graph; listen)

	OFFSET	`1,2`
	EXAMPLE	`1` `2 4` `3 9 15` `8 12 16 20` `5 25 35 45 55` `6 18 24 30 36 42` `7 21 49 63 77 91 105` `...`
	CROSSREFS	`Cf. A100782, A100783, A100784, A100785.` `Sequence in context: A060837 A019600 A096901 this_sequence A110339 A075363 A082382` `Adjacent sequences: A100778 A100779 A100780 this_sequence A100782 A100783 A100784`
	KEYWORD	`easy,nonn,tabl`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Nov 30 2004`
	EXTENSIONS	`Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Dec 10 2004`

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Last modified July 24 12:00 EDT 2008. Contains 142294 sequences.

AT&T Labs Research