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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A131789 The length of the n-th run of identical consecutive values in the sequence A000005, where A000005(k) is the number of divisors of k. 2

%I

%S 1,2,1,1,1,1,1,1,1,1,1,1,2,1,1,1,1,1,2,1,1,1,2,1,1,1,1,1,3,1,1,2,1,1,

%T 1,1,2,1,1,1,1,1,1,1,1,1,1,1,2,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,2,1,1,

%U 1,1,1,1,1,1,3,1,1,1,1,1,3,1,1,2,1,1,1,1,2,1,1,1,1,1,1,1,1,1,1,2,2,1,1,2,1

%N The length of the n-th run of identical consecutive values in the sequence A000005, where A000005(k) is the number of divisors of k.

%H Jason Kimberley, <a href="/A131789/b131789.txt">Table of n, a(n) for n = 1..89415</a>

%e Runs in A000005: (1), (2,2), (3), (2), (4), (2), (4), (3), (4), (2), (6), (2), (4,4), (5), (2), (6), (2), (6), (4,4), (2), (8), (3), ...

%Y Cf. A000005, A131790.

%K nonn,easy

%O 1,2

%A _Leroy Quet_, Jul 15 2007

%E More terms from _Joshua Zucker_, Jul 18 2007

%E Name clarified by _Jason Kimberley_, Jul 18 2018

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.

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 6 18:59 EDT 2020. Contains 336256 sequences. (Running on oeis4.)