A236447 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give

A236447

Number of (n+1)X(3+1) 0..3 arrays colored with the difference of the maximum and minimum in each 2X2 subblock

17258, 280436, 4535608, 66621676, 1010208094, 15722137048, 247623908622, 3790739028840, 58545992300474, 905358628033160, 14130476092040594, 217449189657776236, 3373160484277287464, 52056868857459546556

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

OFFSET

1,1

COMMENTS

Column 3 of A236451

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=1

..1..2..0..0....2..2..3..2....3..1..2..2....0..3..1..1....3..0..1..2

..3..3..0..0....0..0..1..1....1..2..2..2....3..2..1..0....3..2..0..3

CROSSREFS