A068344 - OEIS

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A068344

Square array read by antidiagonals of T(n,k)=sign(n-k).

0, -1, 1, -1, 0, 1, -1, -1, 1, 1, -1, -1, 0, 1, 1, -1, -1, -1, 1, 1, 1, -1, -1, -1, 0, 1, 1, 1, -1, -1, -1, -1, 1, 1, 1, 1, -1, -1, -1, -1, 0, 1, 1, 1, 1, -1, -1, -1, -1, -1, 1, 1, 1, 1, 1, -1, -1, -1, -1, -1, 0, 1, 1, 1, 1, 1, -1, -1, -1, -1, -1, -1, 1, 1, 1, 1, 1, 1, -1, -1, -1, -1, -1, -1, 0, 1, 1, 1, 1, 1, 1, -1, -1, -1, -1, -1, -1, -1, 1, 1, 1, 1 (list; table; graph; refs; listen; history; internal format)

	OFFSET	`0,1`
	CROSSREFS	`Cf. A049581, A057427, A057428. As a straight sequence, a(n)=0 when n is in A046092. A023532 seen as a triangle is half this square.` `Sequence in context: A144609 A115517 A022930 * A161382 A138886 A099859` `Adjacent sequences: A068341 A068342 A068343 * A068345 A068346 A068347`
	KEYWORD	`easy,sign,tabl`
	AUTHOR	`Henry Bottomley (se16(AT)btinternet.com), Mar 06 2002`

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Last modified February 14 15:39 EST 2012. Contains 205635 sequences.