This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A054006 Number of divisors of n and n+1 which have the same number and sum of divisors. 3
 4, 8, 8, 8, 8, 8, 16, 16, 16, 8, 16, 16, 16, 16, 16, 16, 16, 16, 32, 16, 16, 16, 16, 32, 16, 16, 16, 24, 16, 16, 16, 32, 32, 32, 16, 16, 32, 16, 32, 16, 16, 32, 32, 16, 32, 16, 16, 16, 16, 16, 32, 32, 16, 32, 16, 16, 64, 32, 16, 32, 16, 32, 16, 64, 32, 32, 16, 32, 32, 32, 32 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS FORMULA a(n) = tau(A054004(n)) EXAMPLE See example in A054004. CROSSREFS Cf. A000005, A000203, A002961, A005237, A053249, A054004, A054005, A054007. Sequence in context: A200357 A201405 A040012 * A029679 A304651 A187768 Adjacent sequences:  A054003 A054004 A054005 * A054007 A054008 A054009 KEYWORD nonn AUTHOR Asher Auel (asher.auel(AT)reed.edu) Jan 12, 2000 EXTENSIONS More terms from Jud McCranie, Oct 15 2000 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 20 03:51 EDT 2019. Contains 327210 sequences. (Running on oeis4.)