A367761 - OEIS

A367761

a(n) is the denominator of the probability that the free polyomino with binary code A246521(n+1) appears in the Eden growth model on the square lattice, when n square cells have been added.

1, 1, 3, 3, 3, 6, 4, 6, 12, 5, 30, 30, 15, 60, 15, 30, 120, 60, 30, 40, 60, 450, 600, 90, 90, 600, 90, 900, 48, 600, 48, 1800, 90, 450, 90, 40, 48, 90, 1800, 80, 48, 180, 90, 48, 90, 80, 180, 180, 96, 40, 48, 180, 40, 480, 360, 360, 151200, 756000, 756000, 10080, 10080, 151200, 151200, 630, 10080

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,3

COMMENTS

Can be read as an irregular triangle, whose n-th row contains A000105(n) terms, n >= 1.

LINKS

Table of n, a(n) for n=1..65.

Index entries for sequences related to polyominoes.

FORMULA

A367760(n)/a(n) = (A367764(n)/A367765(n))*A335573(n+1).

EXAMPLE

As an irregular triangle: