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A117200 Inverse of number triangle (1,x)+(x,x^2)+(x^2,x^3). 2
1, -1, 1, -1, 0, 1, 1, -1, 0, 1, 0, 0, 0, 0, 1, 2, -1, -1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, -1, 1, 0, -1, 0, 0, 0, 1, 1, 0, -1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, -1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, -3, 2, 1, -1, 0, -1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, -1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
0,16
COMMENTS
Inverse of A117198. Row sums are A117201.
LINKS
EXAMPLE
Triangle begins
1,
-1, 1,
-1, 0, 1,
1, -1, 0, 1,
0, 0, 0, 0, 1,
2, -1, -1, 0, 0, 1,
0, 0, 0, 0, 0, 0, 1,
-1, 1, 0, -1, 0, 0, 0, 1,
1, 0, -1, 0, 0, 0, 0, 0, 1
CROSSREFS
Sequence in context: A361509 A143809 A056559 * A107015 A015374 A164058
KEYWORD
sign,tabl
AUTHOR
Paul Barry, Mar 02 2006
STATUS
approved

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Last modified March 19 07:31 EDT 2024. Contains 370955 sequences. (Running on oeis4.)