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 A198533 Number of 2n X 4 0..4 arrays with values 0..4 introduced in row major order and each element equal to an odd number of horizontal and vertical neighbors. 1
 17, 7376, 5724014, 4685798318, 3879729611186, 3222491533589620, 2679021244608145508, 2227788819914832219768, 1852697804471510467351558, 1540794008599547700761105406, 1281407594160466806617993848394 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 2 of A198534. LINKS R. H. Hardin, Table of n, a(n) for n = 1..88 EXAMPLE Some solutions for n=2: ..0..1..2..1....0..1..2..1....0..1..2..2....0..0..1..1....0..1..0..0 ..0..1..2..1....0..1..2..1....0..1..3..3....1..1..0..0....0..1..2..2 ..3..3..4..0....3..3..0..0....1..2..4..4....0..2..3..3....3..3..0..3 ..1..1..4..0....2..2..3..3....1..2..3..3....0..2..4..4....4..4..0..3 CROSSREFS Cf. A198534. Sequence in context: A243481 A287038 A198406 * A192766 A166326 A203678 Adjacent sequences: A198530 A198531 A198532 * A198534 A198535 A198536 KEYWORD nonn AUTHOR R. H. Hardin, Oct 26 2011 STATUS approved

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Last modified August 11 23:38 EDT 2024. Contains 375080 sequences. (Running on oeis4.)