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!)
A246228 Number of permutations of [n] with exactly eight (possibly overlapping) occurrences of the consecutive step pattern given by the binary expansion of n, where 1=up and 0=down. 2

%I

%S 9690,0,0,0,0,0,15555589905976050,0,0,0,0,0,705927677520644167681,0,0,

%T 0,44817466764068599693530434,0,0,0,0,

%U 327785215140138748862828534217850944,0,3576951943897328654730413638351518560,0,0,0

%N Number of permutations of [n] with exactly eight (possibly overlapping) occurrences of the consecutive step pattern given by the binary expansion of n, where 1=up and 0=down.

%H Alois P. Heinz, <a href="/A246228/b246228.txt">Table of n, a(n) for n = 15..130</a>

%Y Column k=8 of A242783.

%K nonn

%O 15,1

%A _Alois P. Heinz_, Aug 19 2014

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 October 22 01:46 EDT 2020. Contains 337948 sequences. (Running on oeis4.)