A151537 Number of 1-sided polyedges with n edges.

1, 2, 7, 25, 99, 416, 1854, 8411, 38980, 182829, 867096, 4145168, 19955321, 96619260, 470157772

Offset: 1

Author

Ed Pegg Jr, May 13 2009

Keywords

• nonn
• hard
• more

Links

• Ishino Keiichiro, Polyedge, Puzzle will be played, 2009.
• Ed Pegg, Jr., Illustrations of polyforms
• Eric Weisstein's World of Mathematics, Polyedge

Crossrefs

Cf. A019988, A096267, A037245, A151538, A333249.

Extensions

a(11)-a(14) from Joseph Myers, Oct 03 2011

a(15) from Ishino Keiichiro's website added by Andrey Zabolotskiy, Dec 10 2023