The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A082736 LCM of n-th group of terms in A074147. 2
 1, 4, 105, 120, 109395, 55440, 1856277675, 42325920, 966710699955, 7210803600, 303646176781042095, 43790142876480, 2432266195067253069525, 6338767304469600, 12793596869123737224933375, 659267412349963697280 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS FORMULA a(1) = 1, a(2n) = LCM of next 2n even numbers. a(2n+1) = LCM of next 2n+1 odd numbers. MAPLE A061925 := proc(n) ceil(n^2/2)+1 ; end: A082736 := proc(n) seq(A061925(n-1)+2*k, k=0..n-1) ; ilcm(%) ; end: seq(A082736(n), n=1..20) ; # R. J. Mathar, Jul 17 2007 CROSSREFS Cf. A074147, A074148, A074149, A082735. Sequence in context: A013114 A281430 A158114 * A157039 A171117 A203313 Adjacent sequences:  A082733 A082734 A082735 * A082737 A082738 A082739 KEYWORD nonn AUTHOR Amarnath Murthy, Apr 14 2003 EXTENSIONS More terms from R. J. Mathar, Jul 17 2007 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified September 23 10:55 EDT 2021. Contains 347612 sequences. (Running on oeis4.)