id:A049627 - OEIS Search Results

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Array T read by diagonals; T(i,j)=(i+1)*(j+1)-H(i,j), where H is the array in A049615; thus T(i,j) is the number of lattice points in rectangle having diagonal (0,0)-to-(i,j) that are visible from (i,j).

+0
11

1, 2, 2, 2, 4, 2, 2, 5, 5, 2, 2, 6, 6, 6, 2, 2, 7, 8, 8, 7, 2, 2, 8, 9, 10, 9, 8, 2, 2, 9, 11, 12, 12, 11, 9, 2, 2, 10, 12, 15, 14, 15, 12, 10, 2, 2, 11, 14, 16, 18, 18, 16, 14, 11, 2, 2, 12, 15, 19, 19, 22, 19, 19, 15, 12, 2, 2, 13, 17, 21, 23, 24, 24, 23, 21 (list; table; graph; listen)

	OFFSET	`0,2`
	EXAMPLE	`Diagonals (each starting on row 1): {1}; {2,2}; {2,4,2}; ...`
	CROSSREFS	`Sequence in context: A049716 A066671 A159802 this_sequence A134058 A086973 A029658` `Adjacent sequences: A049624 A049625 A049626 this_sequence A049628 A049629 A049630`
	KEYWORD	`nonn,tabl`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

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Last modified November 25 13:42 EST 2009. Contains 167481 sequences.

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