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 A229517 Number of n X 4 0..2 arrays of the median of the corresponding element, the element to the east and the element to the south in a larger (n+1) X 5 0..2 array without adjacent equal elements in the latter. 1
 39, 481, 4193, 34151, 275243, 2223913, 17910863, 144971845, 1169783337, 9467210619, 76463151051, 618555984777, 4998183735285, 40420906533161, 326695769416007, 2641578123513399, 21352776926914139, 172637934108286039 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 4 of A229521. LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 R. H. Hardin, Empirical recurrence of order 75 FORMULA Empirical recurrence of order 75 (see link above). EXAMPLE Some solutions for n=3: 1 1 2 1 1 1 0 2 1 1 1 2 1 1 2 1 2 1 0 1 1 2 1 1 2 0 2 1 0 1 2 0 1 2 1 2 1 1 1 0 2 0 1 1 0 2 1 2 1 2 0 1 2 0 1 1 2 1 0 1 CROSSREFS Cf. A229521. Sequence in context: A210328 A231993 A357958 * A254871 A193072 A077454 Adjacent sequences: A229514 A229515 A229516 * A229518 A229519 A229520 KEYWORD nonn AUTHOR R. H. Hardin, Sep 25 2013 STATUS approved

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Last modified January 30 08:28 EST 2023. Contains 359942 sequences. (Running on oeis4.)