A354307 Number of fixed polypentagrams with n cells.

2, 10, 70, 550, 4590, 39774, 353860, 3210940, 29581000, 275808700, 2596707296

Offset

1,1

Links

Table of n, a(n) for n=1..11.

George Sicherman, Catalogue of Polypentagrams

Crossrefs

Cf. A211179, A354306.

Sequence in context: A372940 A121201 A166076 * A217938 A333902 A051405

Adjacent sequences: A354304 A354305 A354306 * A354308 A354309 A354310

Keyword

nonn,more,hard

Author

Aaron N. Siegel, May 23 2022

Status

approved