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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 Chai Wah Wu, Record values in appending and prepending bitstrings to runs of binary digits, arXiv:1810.02293 [math.NT], 2018. 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 Adjacent sequences: A156061 A156062 A156063 * A156065 A156066 A156067 KEYWORD easy,sign,tabl AUTHOR Paul Barry, Oct 20 2009 STATUS approved

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Last modified March 25 13:07 EDT 2023. Contains 361521 sequences. (Running on oeis4.)