id:A027422 - OEIS Search Results

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Triangle T00, T10, T11, T20, T21, T22 etc. where Tmn = number of distinct products ij with m-n<=i,j<=m.

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1, 1, 2, 1, 3, 4, 1, 3, 6, 7, 1, 3, 6, 9, 10, 1, 3, 6, 10, 14, 15, 1, 3, 6, 10, 14, 18, 19, 1, 3, 6, 10, 15, 20, 25, 26, 1, 3, 6, 10, 15, 20, 25, 30, 31, 1, 3, 6, 10, 15, 20, 26, 31, 36, 37, 1, 3, 6, 10, 15, 21, 26, 32, 37, 42, 43, 1, 3, 6, 10, 15, 21, 28, 34, 41, 47, 53, 54, 1, 3, 6 (list; table; graph; listen)

	OFFSET	`0,3`
	CROSSREFS	`Cf. A027384, A027421.` `Sequence in context: A011358 A084579 A059663 this_sequence A135086 A059026 A104471` `Adjacent sequences: A027419 A027420 A027421 this_sequence A027423 A027424 A027425`
	KEYWORD	`tabl,nonn,easy`
	AUTHOR	`njas`
	EXTENSIONS	`More terms from Olivier Gerard Nov 15 1997`

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Last modified August 28 22:44 EDT 2008. Contains 143251 sequences.

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