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A236532 Triangle T(n,k) read by rows: T(n,k) = floor(n*k/(n+k)), with 1<=k<=n. 0
0, 0, 1, 0, 1, 1, 0, 1, 1, 2, 0, 1, 1, 2, 2, 0, 1, 2, 2, 2, 3, 0, 1, 2, 2, 2, 3, 3, 0, 1, 2, 2, 3, 3, 3, 4, 0, 1, 2, 2, 3, 3, 3, 4, 4, 0, 1, 2, 2, 3, 3, 4, 4, 4, 5, 0, 1, 2, 2, 3, 3, 4, 4, 4, 5, 5, 0, 1, 2, 3, 3, 4, 4, 4, 5, 5, 5, 6, 0, 1, 2, 3, 3, 4, 4, 4, 5, 5 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,10

COMMENTS

Triangle begins:

0

0 1

0 1 1

0 1 1 2

0 1 1 2 2

0 1 2 2 2 3

0 1 2 2 2 3 3

0 1 2 2 3 3 3 4

0 1 2 2 3 3 3 4 4

0 1 2 2 3 3 4 4 4 5

0 1 2 2 3 3 4 4 4 5 5

0 1 2 3 3 4 4 4 5 5 5 6

0 1 2 3 3 4 4 4 5 5 5 6 6

0 1 2 3 3 4 4 5 5 5 6 6 6 7

0 1 2 3 3 4 4 5 5 6 6 6 6 7 7

0 1 2 3 3 4 4 5 5 6 6 6 7 7 7 8

0 1 2 3 3 4 4 5 5 6 6 7 7 7 7 8 8

0 1 2 3 3 4 5 5 6 6 6 7 7 7 8 8 8 9

LINKS

Table of n, a(n) for n=1..88.

PROG

(Python)

for n in range(1, 21):

  for k in range(1, n+1):

    print n*k // (n+k),

  #print

CROSSREFS

Sequence in context: A026931 A127506 A007968 * A077763 A030218 A281388

Adjacent sequences:  A236529 A236530 A236531 * A236533 A236534 A236535

KEYWORD

nonn,easy

AUTHOR

Alex Ratushnyak, Jan 27 2014

STATUS

approved

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Last modified February 19 22:04 EST 2018. Contains 299357 sequences. (Running on oeis4.)