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A216792 T(n,k)=Number of (k+1) colorings of a side-n hexagonal array with colors introduced in row major order 3
1, 1, 0, 1, 1, 0, 1, 11, 1, 0, 1, 31, 5318, 1, 0, 1, 40, 2976610, 22831676, 1, 0, 1, 41, 151280046, 39123956055580, 915294166360, 1, 0, 1, 41, 1780127826, 724448862721697721, 69275022816331822721697, 348567447145791344, 1, 0, 1, 41 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,8

COMMENTS

Table starts

.1.1..................1.......................1..................1

.0.1.................11......................31.................40

.0.1...............5318.................2976610..........151280046

.0.1...........22831676..........39123956055580.724448862721697721

.0.1.......915294166360.69275022816331822721697

.0.1.348567447145791344

.0.1

.0

rows 1, 2, 3 final values are 1, 41, 36536972794

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..40

EXAMPLE

Some solutions for n=3 k=4

......0.1.0..........0.1.0..........0.1.2..........0.1.0..........0.1.2

.....2.3.2.1........1.2.3.1........3.2.3.0........2.3.2.1........1.2.3.0

....1.0.1.3.0......0.3.1.0.3......2.0.1.2.3......1.0.1.3.0......3.0.1.2.3

.....2.3.2.1........2.0.2.1........1.2.3.1........2.3.0.1........1.2.3.0

......0.1.3..........1.3.0..........3.0.2..........0.1.2..........0.1.2

CROSSREFS

Sequence in context: A266379 A158215 A294254 * A260237 A118135 A318671

Adjacent sequences:  A216789 A216790 A216791 * A216793 A216794 A216795

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Sep 16 2012

STATUS

approved

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Last modified April 19 01:29 EDT 2019. Contains 322237 sequences. (Running on oeis4.)