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 A251515 T(n,k)=Number of (n+1)X(k+1) 0..4 arrays with every 2X2 subblock summing to a prime 8
 234, 2264, 2264, 21862, 45470, 21862, 211680, 915152, 915152, 211680, 2047194, 18567350, 38529532, 18567350, 2047194, 19818328, 376244106, 1644478410, 1644478410, 376244106, 19818328, 191708742, 7639226604, 70039777210 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Table starts .......234.........2264...........21862.............211680..............2047194 ......2264........45470..........915152...........18567350............376244106 .....21862.......915152........38529532.........1644478410..........70039777210 ....211680.....18567350......1644478410.......148463964846.......13364799461286 ...2047194....376244106.....70039777210.....13364799461286.....2540293097889030 ..19818328...7639226604...2992599553368...1208313756081050...485520243093380470 .191708742.154952279458.127661562848818.109013443872596196.92544866490813863710 LINKS R. H. Hardin, Table of n, a(n) for n = 1..112 FORMULA Empirical for column k: k=1: [linear recurrence of order 9] k=2: [order 35] EXAMPLE Some solutions for n=2 k=4 ..0..1..0..0..1....0..0..0..0..0....0..0..0..0..0....0..0..0..1..0 ..2..0..2..1..1....2..0..3..0..3....4..3..0..3..0....4..3..0..4..2 ..1..0..3..1..2....3..2..0..4..4....4..0..4..4..4....0..0..0..3..2 CROSSREFS Sequence in context: A252338 A252777 A252771 * A251508 A185482 A036209 Adjacent sequences:  A251512 A251513 A251514 * A251516 A251517 A251518 KEYWORD nonn,tabl AUTHOR R. H. Hardin, Dec 03 2014 STATUS approved

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Last modified September 24 14:46 EDT 2020. Contains 337321 sequences. (Running on oeis4.)