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A154959 Triangle read by rows. Signed version of A008277. 1
1, -1, 1, -1, -3, 1, -1, -7, -6, 1, -1, -15, -25, -10, 1, -1, -31, -90, -65, -15, 1, -1, -63, -301, -350, -140, -21, 1, -1, -127, -966, -1701, -1050, -266, -28, 1, -1, -255, -3025, -7770, -6951, -2646, -462, -36, 1 (list; table; graph; refs; listen; history; internal format)
OFFSET

1,5

COMMENTS

Main diagonal positive, the rest of the terms negative. Matrix inverse of this triangle is A154960. Signs in columns as in A153881.

CROSSREFS

Sequence in context: A154341 A202181 A130749 * A008277 A080417 A193387

Adjacent sequences:  A154956 A154957 A154958 * A154960 A154961 A154962

KEYWORD

sign,tabl

AUTHOR

Mats Granvik (mats.granvik(AT)abo.fi), Jan 18 2009

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Last modified February 14 06:20 EST 2012. Contains 205570 sequences.