A151536 Number of 2-sided strip polycairos with n cells.

1, 2, 4, 10, 25, 64, 158, 405, 1018, 2580, 6512, 16435, 41411, 104280, 262161, 658763, 1652954, 4145802, 10386103

Offset

1,2

Links

Table of n, a(n) for n=1..19.

Ed Pegg, Jr., Illustrations of polyforms

Eric Weisstein's World of Mathematics, Polycairo

Crossrefs

Cf. A159866, A151534, A151535.

Sequence in context: A173610 A036887 A307578 * A026269 A000645 A005958

Adjacent sequences: A151533 A151534 A151535 * A151537 A151538 A151539

Keyword

nonn,hard,more

Author

Ed Pegg Jr, May 13 2009

Extensions

a(13)-a(19) from Joseph Myers, Oct 03 2011

Status

approved