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A049687 Array T read by diagonals: T(i,j)=number of lines passing through (0,0) and at least one other lattice point (h,k) satisfying 0<=h<=i, 0<=k<=j. 9
0, 1, 1, 1, 3, 1, 1, 4, 4, 1, 1, 5, 5, 5, 1, 1, 6, 7, 7, 6, 1, 1, 7, 8, 9, 8, 7, 1, 1, 8, 10, 11, 11, 10, 8, 1, 1, 9, 11, 14, 13, 14, 11, 9, 1, 1, 10, 13, 15, 17, 17, 15, 13, 10, 1, 1, 11, 14, 18, 18, 21, 18, 18, 14, 11, 1, 1, 12, 16, 20, 22, 23, 23, 22, 20, 16, 12, 1, 1, 13, 17, 22, 24 (list; table; graph; refs; listen; history; internal format)
OFFSET

0,5

CROSSREFS

Sequence in context: A080575 A205117 A077228 * A132735 A028262 A173117

Adjacent sequences:  A049684 A049685 A049686 * A049688 A049689 A049690

KEYWORD

nonn,tabl,nice

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

EXTENSIONS

More terms from Michael Somos

Cf. A049639.

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Last modified February 17 19:13 EST 2012. Contains 206085 sequences.