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A181432 Symmetric square array T(n,k) read by antidiagonals. T(n,k)=A008836(n)*A008836(k). 0
1, -1, -1, -1, 1, -1, 1, 1, 1, 1, -1, -1, 1, -1, -1, 1, 1, -1, -1, 1, 1, -1, -1, 1, 1, 1, -1, -1, -1, 1, -1, -1, -1, -1, 1, -1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, -1, 1, -1, -1, -1, -1, 1, -1, 1, -1, -1, -1, -1, 1, 1, 1, -1, -1, -1, -1, -1, 1, -1, 1, 1, -1, -1, 1, 1, -1, 1, -1, -1, 1, 1, 1, -1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
EXAMPLE
Array starts:
1,-1,-1,1,-1,1, ...
-1,1,1,-1,1,-1, ...
-1,1,1,-1,1,-1, ...
1,-1,-1,1,-1,1, ...
-1,1,1,-1,1,-1, ...
1,-1,-1,1,-1,1, ...
CROSSREFS
Cf. A008836.
Sequence in context: A014077 A174351 A339265 * A165326 A143621 A292117
KEYWORD
sign,tabl
AUTHOR
Mats Granvik, Oct 20 2010
STATUS
approved

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Last modified March 29 00:26 EDT 2024. Contains 371264 sequences. (Running on oeis4.)