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 A237241 T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the maximum plus the lower median minus the upper median minus the minimum of every 2X2 subblock equal 7
 256, 1280, 1280, 6976, 10304, 6976, 40064, 91744, 91744, 40064, 234752, 853152, 1301304, 853152, 234752, 1395200, 8036672, 19274172, 19274172, 8036672, 1395200, 8344576, 76825568, 289676104, 459119016, 289676104, 76825568, 8344576 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts ........256.........1280............6976............40064............234752 .......1280........10304...........91744...........853152...........8036672 .......6976........91744.........1301304.........19274172.........289676104 ......40064.......853152........19274172........459119016.......11137777044 .....234752......8036672.......289676104......11137777044......437033830120 ....1395200.....76825568......4449131420.....278128391716....17747542016236 ....8344576....738844928.....68828263944....6990394415904...723439724838368 ...50202624...7176050400...1081186864940..179301038336988.30208726334780288 ..302927872..69914628864..17018044573704.4594600424879136 .1834229760.686426761312.271159929187820 LINKS R. H. Hardin, Table of n, a(n) for n = 1..84 FORMULA Empirical for column k: k=1: [linear recurrence of order 11] k=2: [order 22] k=3: [order 67] EXAMPLE Some solutions for n=2 k=4 ..2..0..0..0..3....0..0..2..2..0....0..0..1..2..0....0..0..0..0..1 ..1..1..3..1..0....1..2..1..2..1....1..2..2..0..3....1..2..1..2..2 ..1..3..3..3..0....0..2..2..2..0....2..2..1..2..0....3..1..3..1..0 CROSSREFS Sequence in context: A236979 A236973 A237956 * A120054 A237952 A237235 Adjacent sequences: A237238 A237239 A237240 * A237242 A237243 A237244 KEYWORD nonn,tabl AUTHOR R. H. Hardin, Feb 05 2014 STATUS approved

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Last modified December 5 09:29 EST 2023. Contains 367589 sequences. (Running on oeis4.)