id:A107661 - OEIS Search Results

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Triangle read by rows: T(n,m) = Sum m^max(k,n-k),k=0..n.

+0
3

1, 1, 2, 1, 4, 3, 1, 6, 10, 4, 1, 8, 21, 24, 5, 1, 10, 36, 72, 52, 6, 1, 12, 55, 160, 225, 112, 7, 1, 14, 78, 300, 656, 702, 232, 8, 1, 16, 105, 504, 1525, 2688, 2133, 480, 9, 1, 18, 136, 784, 3060, 7750, 10816, 6480, 976, 10, 1, 20, 171, 1152, 5537, 18576, 38875 (list; table; graph; listen)

	OFFSET	`0,3`
	FORMULA	`a(2n) = m^n(2(m^(n+1)-1)/(m-1)-1), a(2n+1) = 2m^(n+1)(m^(n+1)-1)/(m-1)`
	CROSSREFS	`Cf. A107659, A107660.` `Sequence in context: A132191 A094437 A053123 this_sequence A126570 A048790 A094158` `Adjacent sequences: A107658 A107659 A107660 this_sequence A107662 A107663 A107664`
	KEYWORD	`nonn,easy,tabl`
	AUTHOR	`Mitch Harris (harris (AT) tcs.inf.tu-dresden.de)`

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Last modified July 26 13:41 EDT 2008. Contains 142293 sequences.

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