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 A236113 Number of (n+1)X(1+1) 0..3 arrays colored with the difference of the maximum and the upper median in each 2X2 subblock 1
 256, 2248, 20000, 175096, 1538144, 13525664, 118990080, 1045666976, 9189157840, 80777516672, 710143327296, 6242142152960, 54866901910784, 482290009045120, 4239509147919360, 37265899068310016, 327571084007019264 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 1 of A236118 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 FORMULA Empirical: a(n) = 136*a(n-3) +2752*a(n-4) +8440*a(n-5) +61552*a(n-6) +157376*a(n-7) +161456*a(n-8) +545568*a(n-9) -1267328*a(n-10) -1455616*a(n-11) -2677184*a(n-12) -2909056*a(n-13) +2609152*a(n-14) +12288*a(n-15) -208896*a(n-16) +1271808*a(n-17) -405504*a(n-18) for n>19 EXAMPLE Some solutions for n=4 ..0..1....2..0....0..1....2..3....0..2....2..2....0..2....2..3....0..2....0..0 ..1..3....0..3....3..0....0..1....1..1....0..1....1..1....1..1....0..1....0..3 ..0..2....3..0....1..2....0..1....0..0....2..1....1..0....0..0....1..3....1..3 ..1..2....1..1....2..2....0..0....0..3....0..2....0..2....3..0....3..2....1..1 ..3..1....2..3....2..3....0..2....0..2....3..2....2..1....2..1....2..2....3..3 CROSSREFS Sequence in context: A236500 A236495 A236118 * A235521 A235652 A235518 Adjacent sequences: A236110 A236111 A236112 * A236114 A236115 A236116 KEYWORD nonn AUTHOR R. H. Hardin, Jan 19 2014 STATUS approved

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Last modified September 21 02:47 EDT 2023. Contains 365486 sequences. (Running on oeis4.)