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A063711 Table of bits required for product of n- and k-bit nonnegative numbers read by antidiagonals. +0
2
0, 0, 0, 0, 1, 0, 0, 2, 2, 0, 0, 3, 4, 3, 0, 0, 4, 5, 5, 4, 0, 0, 5, 6, 6, 6, 5, 0, 0, 6, 7, 7, 7, 7, 6, 0, 0, 7, 8, 8, 8, 8, 8, 7, 0, 0, 8, 9, 9, 9, 9, 9, 9, 8, 0, 0, 9, 10, 10, 10, 10, 10, 10, 10, 9, 0, 0, 10, 11, 11, 11, 11, 11, 11, 11, 11, 10, 0, 0, 11, 12, 12, 12, 12, 12, 12, 12, 12 (list; table; graph; listen)
OFFSET

0,8

COMMENT

Zero is considered to have zero bits.

The first entry is a(0,0) which (arbitrarily) is considered to have offset 0.

FORMULA

a(n, k) = n*k if min(n, k) <= 1, n+k otherwise.

EXAMPLE

Table begins

0 0 0 0 0 0 0 ...

0 1 2 3 4 5 6 ...

0 2 4 5 6 7 8 ...

0 3 5 6 7 8 9 ...

0 4 6 7 8 9 10 ...

CROSSREFS

Cf. A063712.

Initial rows are A000004 and A001477.

Sequence in context: A160692 A051775 A108036 this_sequence A057893 A048720 A067138

Adjacent sequences: A063708 A063709 A063710 this_sequence A063712 A063713 A063714

KEYWORD

nonn,easy,tabl

AUTHOR

Frank Seaton Taylor (ftaylor(AT)cse.ogi.edu), Thu, Aug 09 2001

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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