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 A120111 Bi-diagonal inverse matrix of A120108. 3
 1, -2, 1, 0, -3, 1, 0, 0, -2, 1, 0, 0, 0, -5, 1, 0, 0, 0, 0, -1, 1, 0, 0, 0, 0, 0, -7, 1, 0, 0, 0, 0, 0, 0, -2, 1, 0, 0, 0, 0, 0, 0, 0, -3, 1, 0, 0, 0, 0, 0, 0, 0, 0, -1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, -11, 1 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 COMMENTS Sub-diagonal is -lcm(1,...,n+2)/lcm(1,...,n+1) or -A014963(n+1). Row sums are A120112. LINKS EXAMPLE Triangle begins 1, -2, 1, 0, -3, 1, 0, 0, -2, 1, 0, 0, 0, -5, 1, 0, 0, 0, 0, -1, 1, 0, 0, 0, 0, 0, -7, 1, 0, 0, 0, 0, 0, 0, -2, 1, 0, 0, 0, 0, 0, 0, 0, -3, 1, 0, 0, 0, 0, 0, 0, 0, 0, -1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, -11, 1 CROSSREFS Sequence in context: A238942 A082754 A063173 * A130055 A202452 A127013 Adjacent sequences:  A120108 A120109 A120110 * A120112 A120113 A120114 KEYWORD easy,sign,tabl AUTHOR Paul Barry, Jun 09 2006 STATUS approved

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Last modified February 28 09:52 EST 2020. Contains 332323 sequences. (Running on oeis4.)