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 A167249 Number of ways to partition a 3*n X 4 grid into 6 connected equal-area regions 0
 11, 2003, 244252, 22351172, 1403637121 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Table of n, a(n) for n=1..5. EXAMPLE Some solutions for n=3 ...1.1.1.2...1.1.1.2...1.1.1.2...1.1.1.2...1.1.1.2...1.1.1.2...1.1.1.2 ...1.1.2.2...1.1.2.2...1.1.2.2...1.1.2.2...1.1.2.2...1.1.2.2...1.1.2.2 ...1.3.2.2...1.3.2.2...1.3.2.2...1.3.2.2...1.3.2.2...1.3.2.2...1.3.2.2 ...4.3.3.2...3.3.3.2...3.3.3.2...3.3.3.2...3.3.3.2...3.3.3.2...3.3.3.2 ...4.3.3.5...4.3.3.5...4.3.5.5...3.3.4.4...3.3.4.4...4.3.3.5...3.3.4.4 ...4.6.3.5...4.6.6.5...4.3.5.5...4.4.4.4...5.4.4.4...4.6.5.5...5.5.5.4 ...4.6.5.5...4.4.6.5...4.6.6.5...5.6.6.6...5.6.6.4...4.6.6.5...5.6.6.4 ...4.6.5.5...4.6.6.5...4.6.6.5...5.6.6.6...5.6.6.6...4.6.6.5...5.6.4.4 ...4.6.6.6...4.6.5.5...4.4.6.6...5.5.5.5...5.5.5.6...4.4.6.5...5.6.6.6 CROSSREFS Sequence in context: A028453 A024151 A114354 * A180587 A060885 A020519 Adjacent sequences: A167246 A167247 A167248 * A167250 A167251 A167252 KEYWORD nonn AUTHOR R. H. Hardin Oct 31 2009 STATUS approved

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Last modified February 25 02:17 EST 2024. Contains 370308 sequences. (Running on oeis4.)