id:A082110 - OEIS Search Results

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A symmetric square array of numbers, read by antidiagonals.

+0
5

1, 1, 1, 1, 7, 1, 1, 15, 15, 1, 1, 25, 37, 25, 1, 1, 37, 67, 67, 37, 1, 1, 51, 105, 127, 105, 51, 1, 1, 67, 151, 205, 205, 151, 67, 1, 1, 85, 205, 301, 337, 301, 205, 85, 1, 1, 105, 267, 415, 501, 501, 415, 267, 105, 1, 1, 127, 337, 547, 697, 751, 697, 547, 337, 127, 1, 1 (list; table; graph; listen)

	OFFSET	`0,5`
	COMMENT	`Rows include A082111, A082112. The main diagonal is A082113. The diagonal sums are A082114.`
	FORMULA	`Square array defined by T(n, k)=(k^2n^2+5kn+1)`
	EXAMPLE	`Rows begin` `1 1 1 1 1 ...` `1 7 15 25 37 ...` `1 15 37 67 105 ...` `1 25 67 127 205 ...` `1 37 105 205 337 ...`
	CROSSREFS	`Cf. A082105, A082046, A082043, A082039.` `Adjacent sequences: A082107 A082108 A082109 this_sequence A082111 A082112 A082113` `Sequence in context: A050179 A131065 A081580 this_sequence A141597 A119727 A046739`
	KEYWORD	`easy,nonn,tabl`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Apr 04 2003`

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Last modified October 15 09:18 EDT 2008. Contains 145015 sequences.

AT&T Labs Research