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



(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A001417 Number of ways of folding a 2 X 2 X ... X 2 n-dimensional map.
(Formerly M1901 N0750)

%I M1901 N0750

%S 1,2,8,96,4608,798720,361267200,362794844160

%N Number of ways of folding a 2 X 2 X ... X 2 n-dimensional map.

%D N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).

%D N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

%H W. F. Lunnon, <a href="https://doi.org/10.1093/comjnl/14.1.75">Multi-dimensional map-folding</a>, Computer Journal 14 1971 75-80.

%H <a href="/index/Fo#fold">Index entries for sequences obtained by enumerating foldings</a>

%Y Cf. A000136, A000560, A195646, A001418.

%K hard,nonn,nice,more

%O 0,2

%A _N. J. A. Sloane_.

%E a(7) from _Sean A. Irvine_, Dec 21 2017

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 April 15 10:11 EDT 2021. Contains 342977 sequences. (Running on oeis4.)