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 A111550 Column 1 of A111549, which is the matrix log of A111544. 0
 0, 2, 6, 32, 222, 1824, 17016, 176112, 1993392, 24438960, 322294896, 4548010032, 68385367152, 1091838106800, 18454096189296, 329306074785072, 6189015238217712, 122232512688657840, 2531600753529542256 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS Table of n, a(n) for n=0..18. PROG (PARI) {a(n)=local(M=matrix(n+2, n+2, m, j, if(m==j, 1, if(m==j+1, -m+1, -(m-j-1)*polcoeff(log(sum(i=0, m, (i+2)!/2!*x^i)), m-j-1))))); if(n<0, 0, sum(i=1, #M, (M^0-M)^i/i)[n+2, 2])} CROSSREFS Cf. A111549, A111544. Sequence in context: A361354 A357664 A321086 * A261398 A009686 A012318 Adjacent sequences: A111547 A111548 A111549 * A111551 A111552 A111553 KEYWORD nonn AUTHOR Paul D. Hanna, Aug 07 2005 STATUS approved

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Last modified December 8 23:37 EST 2023. Contains 367681 sequences. (Running on oeis4.)