id:A096966 - OEIS Search Results

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Triangle (read by rows) in which the number of entries in a row only increases by 1 every other row, the first column and the 'diagonal' is set to all 1's and a(i,j) = a(i-1,j) + a(i-1,j-1) + a(i-2,j-1) + a(i-3,j-1) for other entries.

+0
1

1, 1, 1, 1, 1, 4, 1, 7, 1, 1, 10, 13, 1, 13, 34, 1, 1, 16, 64, 49, 1, 19, 103, 160, 1, 1, 22, 151, 361, 211, 1, 25, 208, 679, 781, 1, 1, 28, 274, 1141, 1981, 994, 1, 31, 349, 1774, 4162, 3967, 1, 1, 34, 433, 2605, 7756, 10891, 4963, 1, 37, 526, 3661, 13276, 24790, 20815, 1 (list; graph; listen)

	OFFSET	`0,6`
	COMMENT	`The 2nd column is A016777 (3n+1), the 3rd column is A081271 (Vertical of triangular spiral in A051682.)`
	CROSSREFS	`Sequence in context: A056140 A140895 A126150 this_sequence A140703 A157259 A046551` `Adjacent sequences: A096963 A096964 A096965 this_sequence A096967 A096968 A096969`
	KEYWORD	`nonn,tabf`
	AUTHOR	`Gerald McGarvey (Gerald.McGarvey(AT)comcast.net), Aug 18 2004`

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Last modified December 21 10:15 EST 2009. Contains 171081 sequences.

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