A229389 Number of nX5 0..3 arrays of the sum of the corresponding element, the element to the east and the element to the south in a larger (n+1)X6 0..1 array.
560, 68672, 5212236, 345788172, 22494002188, 1451228983308, 93250181644300, 5979900142878732, 383094040360124428, 24530192376561401868, 1570321873470780080140, 100513065865910817914892
Offset: 1
Keywords
Examples
Some solutions for n=2 ..3..2..1..3..2....2..2..2..1..2....2..3..2..2..1....2..2..2..0..1 ..3..1..1..1..2....2..3..2..1..1....2..2..1..1..0....1..2..1..0..1
Links
- R. H. Hardin, Table of n, a(n) for n = 1..139
Formula
Empirical: a(n) = 101*a(n-1) -2532*a(n-2) +10624*a(n-3) -8192*a(n-4) for n>7
Comments