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

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A075031 a(n) is the smallest number k such that the number of divisors of the n numbers from k through k+n-1 are nonincreasing. 5
 1, 2, 20, 20, 714, 714, 25550, 90180, 142803, 809300, 27195648, 27195648, 6973441007, 37962822225, 37962822225, 114296059262, 265228019405583, 394047434860662, 2493689139940250 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS tau(k) >= tau(k+1) >= ... >= tau(k+n-1). Next term is > 2000000. - David Wasserman, May 06 2005 a(17) > 10^12. [Donovan Johnson, Oct 13 2009] a(20) > 2.64x10^15. - Jud McCranie, Mar 27 2019 LINKS Table of n, a(n) for n=1..19. EXAMPLE a(3)=a(4) = 20 as tau(20) > tau(21) = tau(22) > tau(23). CROSSREFS Cf. A075028, A075029, A075046. Sequence in context: A221921 A012739 A261753 * A273466 A278938 A303157 Adjacent sequences: A075028 A075029 A075030 * A075032 A075033 A075034 KEYWORD nonn,more AUTHOR Amarnath Murthy, Sep 02 2002 EXTENSIONS More terms from Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 19 2003 a(11)-a(16) from Donovan Johnson, Oct 13 2009 a(17)-a(19) from Jud McCranie, Mar 27 2019 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 August 8 07:31 EDT 2024. Contains 375020 sequences. (Running on oeis4.)