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A061858 Differences between the ordinary multiplication table A004247 and the carryless multiplication table for GF(2)[X] polynomials A048720, i.e., the effect of the carry bits in binary multiplication. 12
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 8, 0, 0, 8, 0, 0, 0, 0, 0, 0, 12, 0, 8, 0, 12, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 8, 16, 8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 24, 24, 0, 0, 0 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

0,25

LINKS

Table of n, a(n) for n=0..101.

FORMULA

a(n) = A004247(n) - A048720(n).

CROSSREFS

"Zoomed in" variant: A061859, the diagonals 3, 5 and 7 are given by A048728-A048730.

Sequence in context: A089418 A274981 A124856 * A005873 A217511 A178990

Adjacent sequences:  A061855 A061856 A061857 * A061859 A061860 A061861

KEYWORD

nonn,tabl

AUTHOR

Antti Karttunen, May 11 2001

STATUS

approved

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Last modified December 10 02:31 EST 2018. Contains 318036 sequences. (Running on oeis4.)