OFFSET
1,1
COMMENTS
Column 3 of A254306
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..210
FORMULA
Empirical: a(n) = 10*a(n-1) -17*a(n-2) -84*a(n-3) +260*a(n-4) -164*a(n-5) -564*a(n-6) +2856*a(n-7) +11170*a(n-8) -41228*a(n-9) -72878*a(n-10) +251424*a(n-11) -198452*a(n-12) -328104*a(n-13) +2628780*a(n-14) +4648696*a(n-15) -20786505*a(n-16) -29452526*a(n-17) +74588439*a(n-18) +73057204*a(n-19) -41058408*a(n-20) -209594372*a(n-21) -74206736*a(n-22) +213851488*a(n-23) -212060864*a(n-24) +1110211136*a(n-25) -353377472*a(n-26) -1735241984*a(n-27) +1881662208*a(n-28) -2041185792*a(n-29) +721603584*a(n-30) +3116957696*a(n-31) -3646394368*a(n-32) +2008072192*a(n-33) -474447872*a(n-34) -2278555648*a(n-35) +2827354112*a(n-36) -1106116608*a(n-37) +103284736*a(n-38) +605028352*a(n-39) -788529152*a(n-40) +268435456*a(n-41) for n>47
EXAMPLE
Some solutions for n=2
..1..1..0..0..0....1..0..0..0..0....0..1..0..0..1....1..0..0..1..1
..0..1..0..1..1....0..1..0..1..0....0..1..1..1..1....0..0..0..0..1
..1..1..1..0..0....0..1..0..1..0....1..1..0..1..0....0..1..1..0..0
..1..0..0..1..1....0..0..0..0..1....1..0..1..0..0....1..0..1..1..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 27 2015
STATUS
approved