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 A208448 Greatest common divisors of consecutive floor-factorial numbers (A010786). 4
 1, 1, 1, 2, 2, 6, 2, 8, 24, 60, 12, 288, 96, 84, 60, 3840, 384, 15552, 576, 14400, 20160, 221760, 576, 331776, 552960, 224640, 51840, 20321280, 2903040, 108864000, 345600, 17694720, 145981440, 51701760, 1935360, 11287019520, 1254113280, 2978519040, 10782720 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,4 LINKS Reinhard Zumkeller, Table of n, a(n) for n = 1..1000 FORMULA a(n) = GCD(A010786(n+1),A010786(n)). PROG (Haskell) a208448 n = a208448_list !! (n-1) a208448_list = zipWith gcd a010786_list \$ tail a010786_list (PARI) f(n) = prod(k=1, n, n\k); \\ A010786 a(n) = gcd(f(n+1), f(n)); \\ Michel Marcus, Feb 03 2022 CROSSREFS Cf. A010786, A208449, A208450. Sequence in context: A305984 A193388 A291840 * A096869 A345315 A154009 Adjacent sequences: A208445 A208446 A208447 * A208449 A208450 A208451 KEYWORD nonn AUTHOR Reinhard Zumkeller, Feb 26 2012 STATUS approved

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Last modified August 8 09:56 EDT 2024. Contains 375018 sequences. (Running on oeis4.)