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 A152148 Riordan array [exp(-x/2)(1-2x)^(-1/4),x]. 1
 1, 0, 1, 1, 0, 1, 4, 3, 0, 1, 27, 16, 6, 0, 1, 232, 135, 40, 10, 0, 1, 2455, 1392, 405, 80, 15, 0, 1, 30852, 17185, 4872, 945, 140, 21, 0, 1, 449113, 246816, 68740, 12992, 1890, 224, 28, 0, 1, 7432624, 4042017, 1110672, 206220 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 0,7 COMMENTS Row sums are A002801. The Riordan array [exp(-x/m)(1-mx)^(-1/m^2),x] has production matrix with e.g.f. exp(x*t)(t+1/(1-mx)). LINKS EXAMPLE Triangle begins 1, 0, 1, 1, 0, 1, 4, 3, 0, 1, 27, 16, 6, 0, 1, 232, 135, 40, 10, 0, 1, 2455, 1392, 405, 80, 15, 0, 1 The production matrix of this array begins 0, 1, 1, 0, 1, 4, 2, 0, 1, 24, 12, 3, 0, 1, 192, 96, 24, 4, 0, 1; 1920, 960, 240, 40, 5, 1 and has e.g.f. exp(x*t)(t+1/(1-2x)). CROSSREFS Sequence in context: A298739 A294188 A152151 * A270708 A198261 A284056 Adjacent sequences:  A152145 A152146 A152147 * A152149 A152150 A152151 KEYWORD easy,nonn,tabl AUTHOR Paul Barry, Nov 26 2008 STATUS approved

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Last modified May 25 03:50 EDT 2019. Contains 323539 sequences. (Running on oeis4.)