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 A152614 Square array read by upwards antidiagonals. 0
 -1, 1, 1, 1, -1, 1, 0, 0, 0, 0, 1, 1, -1, 1, 1, -1, 0, 0, 0, 0, -1, 1, 1, 0, -1, 0, 1, 1, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, -1, 0, 0, 0, 0, -1, 0, 0, 0, 0, 0, 0, 0, 0, -1, 1, 1, 1, 1, 0, -1, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, -1, 0, 0, 0, 0, -1, 0, 0, 0, 0, -1, 1, -1, 0, 0, 0, 1, 0 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Partial sums + 2 are the natural numbers. For rows greater than columns the mobius function times -1 is interleaved with column-1 zeros in the columns. For columns greater than rows the mobius function times -1 is interleaved with row-1 zeros in the rows. LINKS EXAMPLE Table begins; -1..1..1..0..1.-1..1..0 .1.-1..0..1..0..1..0..0 .1..0.-1..0..0..1..0..0 .0..1..0.-1..0..0..0..1 .1..0..0..0.-1..0..0..0 -1..1..1.,0..0.-1..0..0 .1..0..0..0..0..0.-1..0 .0..0..0..1..0..0..0.-1 and partial sums + 2 are: 1,2,3,4,5,6,7,8,9... PROG (Excel) =if(mod(row(); column())=0; -1*lookup(row()/column(); A000027; A008683); if(mod(column(); row())=0; -1*lookup(column()/row(); A000027; A008683); 0)) CROSSREFS Cf. A000027, A008683. Sequence in context: A300294 A071041 A082551 * A127507 A204441 A127247 Adjacent sequences:  A152611 A152612 A152613 * A152615 A152616 A152617 KEYWORD sign,tabl AUTHOR Mats Granvik, Dec 09 2008 STATUS approved

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Last modified November 30 18:22 EST 2020. Contains 338807 sequences. (Running on oeis4.)