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 A159217 1/8 the number of n X n arrays of squares of integers with every 2X2 subblock summing to 17 0
 3, 8, 17, 35, 69, 137, 269, 533, 1053, 2093, 4157, 8285, 16509, 32957, 65789, 131453, 262653, 525053, 1049597, 2098685, 4196349, 8391677, 16781309, 33560573, 67117053, 134230013, 268451837 (list; graph; refs; listen; history; text; internal format)
 OFFSET 2,1 COMMENTS Same series for 1/4 the number of n X n arrays of squares of integers with every 2X2 subblock summing to 5 Same series for 1/4 the number of n X n arrays of squares of integers with every 2X2 subblock summing to 6 Same series for 1/4 the number of n X n arrays of squares of integers with every 2X2 subblock summing to 11 Same series for 1/4 the number of n X n arrays of squares of integers with every 2X2 subblock summing to 15 Same series for 1/8 the number of n X n arrays of squares of integers with every 2X2 subblock summing to 22 Same series for 1/4 the number of n X n arrays of squares of integers with every 2X2 subblock summing to 23 Same series for 1/4 the number of n X n arrays of squares of integers with every 2X2 subblock summing to 24 LINKS CROSSREFS Sequence in context: A327608 A239844 A182616 * A052996 A112523 A147419 Adjacent sequences:  A159214 A159215 A159216 * A159218 A159219 A159220 KEYWORD nonn AUTHOR R. H. Hardin Apr 06 2009 STATUS approved

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Last modified June 5 12:47 EDT 2020. Contains 334840 sequences. (Running on oeis4.)