A030234 Number of n-celled polyplets having bilateral symmetry.

1, 2, 4, 10, 22, 57, 131, 344, 810, 2144, 5127, 13645, 32984, 88133, 214768, 575578, 1411442

Offset

1,2

Links

Table of n, a(n) for n=1..17.

Eric Weisstein's World of Mathematics, Polyplet.

Crossrefs

Cf. A030222.

Sequence in context: A121285 A221536 A290277 * A205490 A221839 A354423

Adjacent sequences: A030231 A030232 A030233 * A030235 A030236 A030237

Keyword

nonn,hard

Author

David W. Wilson

Extensions

More terms from Joseph Myers, Sep 26 2002

Status

approved