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 A304338 Row sums of A304336. 2
 1, 1, 4, 26, 239, 2902, 44441, 830636, 18495910, 481474188, 14432543299, 492063896964, 18885525411110, 808850019798316, 38368738864146619, 2002743853356179552, 114374154959904537521, 7110312727864509410026, 479017371580348640009295 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 LINKS FORMULA a(n) = Sum_{k=0..n} Sum_{j=0..k} (-1)^j*binomial(2*k,j)*(k-j)^(2*n) / (k!)^2. MAPLE A304338 := n -> add(add((-1)^j*binomial(2*k, j)*(k-j)^(2*n), j=0..k)/(k!)^2, k=0..n): seq(A304338(n), n=0..18); PROG (PARI) a(n) = sum(k=0, n, sum(j=0, k, (-1)^j*binomial(2*k, j)*(k-j)^(2*n)) / (k!)^2); \\ Michel Marcus, May 11 2018 CROSSREFS Cf. A304330, A304334, A304336. Sequence in context: A244524 A209923 A317339 * A115416 A302606 A052577 Adjacent sequences:  A304335 A304336 A304337 * A304339 A304340 A304341 KEYWORD nonn AUTHOR Peter Luschny, May 11 2018 STATUS approved

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Last modified March 24 11:49 EDT 2019. Contains 321448 sequences. (Running on oeis4.)