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 A101818 Triangle read by rows: (1/n)*T(n,h), where T(n,h) is the array in A101817. 2
 1, 1, 1, 1, 6, 2, 1, 21, 36, 6, 1, 60, 300, 240, 24, 1, 155, 1800, 3900, 1800, 120, 1, 378, 9030, 42000, 50400, 15120, 720, 1, 889, 40572, 357210, 882000, 670320, 141120, 5040, 1, 2040, 169400, 2610720, 11677680, 17781120, 9313920, 1451520, 40320, 1 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 0,5 COMMENTS Column 2 is A066524. LINKS FORMULA T(n, h)=(1/n)*C(n, h)*U(n, h), where U(n, h) is the array in A019538. EXAMPLE First rows: 1 1 1 1 6 2 1 21 36 6 CROSSREFS Cf. A066524, A090657, A101817, A101819, A101820, A101821. Sequence in context: A002247 A124913 A181415 * A138186 A110321 A111553 Adjacent sequences:  A101815 A101816 A101817 * A101819 A101820 A101821 KEYWORD nonn,tabl AUTHOR Clark Kimberling, Dec 17 2004 STATUS approved

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