The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A075068 Product of prime(n) primes starting from prime(n). 3
 6, 105, 85085, 215656441, 2928046583754721, 50774191064678342417, 8893257265710151560293840093, 456136734556614681201275816106457, 413876828984538288243690385880996726353717 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Michel Marcus, Table of n, a(n) for n = 1..60 FORMULA a(n) = A002110(n - 1 + A000040(n)) / A002110(n - 1). - Reinhard Zumkeller, Jan 06 2005 EXAMPLE a(1) = 2*3=6, a(2) = 3*5*7= 105, a(4) = product of 7 primes, from 7 up to 29. PROG (PARI) a(n) = my(N=n+prime(n)-1, vp = primes(N)); prod(k=n, N, vp[k]); \\ Michel Marcus, Mar 08 2022 CROSSREFS Cf. A000040, A002110. Sequence in context: A162130 A048707 A259156 * A055763 A213464 A213465 Adjacent sequences: A075065 A075066 A075067 * A075069 A075070 A075071 KEYWORD nonn AUTHOR Amarnath Murthy, Sep 08 2002 EXTENSIONS More terms from David Wasserman, Jan 04 2005 STATUS approved

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

Last modified September 8 22:12 EDT 2024. Contains 375759 sequences. (Running on oeis4.)