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A156064 Inverse of Riordan array (1/(1-x^4), x/(1-x^4)), A156062. 2
1, 0, 1, 0, 0, 1, 0, 0, 0, 1, -1, 0, 0, 0, 1, 0, -2, 0, 0, 0, 1, 0, 0, -3, 0, 0, 0, 1, 0, 0, 0, -4, 0, 0, 0, 1, 4, 0, 0, 0, -5, 0, 0, 0, 1, 0, 9, 0, 0, 0, -6, 0, 0, 0, 1, 0, 0, 15, 0, 0, 0, -7, 0, 0, 0, 1, 0, 0, 0, 22, 0, 0, 0, -8, 0, 0, 0, 1, -22, 0, 0, 0, 30, 0, 0, 0, -9, 0, 0, 0, 1, 0, -52, 0, 0, 0, 39 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
0,17
COMMENTS
Reverse and aerate A069270. First column is signed aerated version of A002293. Diagonal sums are A156065.
LINKS
EXAMPLE
Triangle begins
1;
0, 1;
0, 0, 1;
0, 0, 0, 1;
-1, 0, 0, 0, 1;
0, -2, 0, 0, 0, 1;
0, 0, -3, 0, 0, 0, 1;
0, 0, 0, -4, 0, 0, 0, 1;
4, 0, 0, 0, -5, 0, 0, 0, 1;
0, 9, 0, 0, 0, -6, 0, 0, 0, 1;
0, 0, 15, 0, 0, 0, -7, 0, 0, 0, 1;
0, 0, 0, 22, 0, 0, 0, -8, 0, 0, 0, 1;
-22, 0, 0, 0, 30, 0, 0, 0, -9, 0, 0, 0, 1;
Production matrix is
0, 1;
0, 0, 1;
0, 0, 0, 1;
-1, 0, 0, 0, 1;
0, -1, 0, 0, 0, 1;
0, 0, -1, 0, 0, 0, 1;
0, 0, 0, -1, 0, 0, 0, 1;
0, 0, 0, 0, -1, 0, 0, 0, 1;
0, 0, 0, 0, 0, -1, 0, 0, 0, 1;
0, 0, 0, 0, 0, 0, -1, 0, 0, 0, 1;
0, 0, 0, 0, 0, 0, 0, -1, 0, 0, 0, 1;
0, 0, 0, 0, 0, 0, 0, 0, -1, 0, 0, 0, 1;
0, 0, 0, 0, 0, 0, 0, 0, 0, -1, 0, 0, 0, 1;
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, 0, 0, 0, 1;
CROSSREFS
Sequence in context: A328037 A193426 A156062 * A158757 A294890 A325562
KEYWORD
easy,sign,tabl
AUTHOR
Paul Barry, Oct 20 2009
STATUS
approved

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Last modified March 19 04:58 EDT 2024. Contains 370952 sequences. (Running on oeis4.)