The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A121308

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A121308

Number of 2-anisohedral polyiamonds of order n.
(history; published version)

#8 by Russ Cox at Fri Mar 30 17:28:41 EDT 2012

EXTENSIONS

Adjusted to offset 1 and a(29) and a(30) added by _Joseph Myers (jsm(AT)polyomino.org.uk), _, Nov 21 2010

Discussion

Fri Mar 30

17:28

OEIS Server: https://oeis.org/edit/global/152

#7 by Russ Cox at Fri Mar 30 16:50:30 EDT 2012

AUTHOR

_N. J. A. Sloane (njas(AT)research.att.com), _, Aug 25 2006

Discussion

Fri Mar 30

16:50

OEIS Server: https://oeis.org/edit/global/110

#6 by Russ Cox at Wed Oct 12 16:45:19 EDT 2011

LINKS

Joseph Myers, <a href="http://www.srcf.ucampolyomino.org.uk/~jsm28mathematics/polyform-tiling/">Polyomino tiling</a>

Discussion

Wed Oct 12

16:45

OEIS Server: https://oeis.org/edit/global/99

#5 by Ralf Stephan at Sun Nov 21 13:09:45 EST 2010

STATUS

proposed

approved

#4 by Joseph Myers at Sun Nov 21 12:50:01 EST 2010

OFFSET

9,1,9

#3 by Joseph Myers at Sun Nov 21 12:49:33 EST 2010

DATA

0, 0, 0, 0, 0, 0, 0, 0, 5, 23, 43, 38, 85, 274, 259, 324, 326, 1344, 591, 2348, 1466, 8240, 1773, 16608, 3408, 48372, 5386, 95189, 9351, 330833

OFFSET

9,19

EXTENSIONS

Adjusted to offset 1 and a(29) and a(30) added by Joseph Myers (jsm(AT)polyomino.org.uk), Nov 21 2010

STATUS

approved

proposed

#2 by N. J. A. Sloane at Fri Feb 27 03:00:00 EST 2009

KEYWORD

nonn,new

nonn

AUTHOR

N. J. A. Sloane (njas, (AT)research.att.com), Aug 25 2006

#1 by N. J. A. Sloane at Fri Sep 29 03:00:00 EDT 2006

NAME

Number of 2-anisohedral polyiamonds of order n.

DATA

5, 23, 43, 38, 85, 274, 259, 324, 326, 1344, 591, 2348, 1466, 8240, 1773, 16608, 3408, 48372, 5386, 95189

OFFSET

9,1

LINKS

Joseph Myers, <a href="http://www.srcf.ucam.org/~jsm28/tiling/">Polyomino tiling</a>

KEYWORD

nonn

AUTHOR

njas, Aug 25 2006

STATUS

approved