login
This site is supported by donations to The OEIS Foundation.

 

Logo

"Email this user" was broken Aug 14 to 9am Aug 16. If you sent someone a message in this period, please send it again.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A090165 Number of configurations of Sam Loyd's sliding block 15-puzzle that require a minimum of n moves to be reached, starting with the empty square at one of the 8 non-corner boundary squares. 3
1, 3, 6, 14, 32, 66, 134, 280, 585, 1214, 2462, 4946, 9861, 19600, 38688, 76086, 148435 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..16.

PROG

See link in A089473.

CROSSREFS

Cf. A087725, A089473, A089484, A090164, A090378.

Sequence in context: A006356 A077998 A209357 * A129954 A238768 A272362

Adjacent sequences:  A090162 A090163 A090164 * A090166 A090167 A090168

KEYWORD

fini,more,nonn

AUTHOR

Hugo Pfoertner, Nov 27 2003

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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified August 17 23:58 EDT 2017. Contains 290682 sequences.