login
A081206
Correlation matrix of triangle A046854.
1
1, 1, 1, 1, 2, 1, 1, 2, 2, 1, 1, 3, 3, 3, 1, 1, 3, 4, 4, 3, 1, 1, 4, 6, 7, 6, 4, 1, 1, 4, 7, 9, 9, 7, 4, 1, 1, 5, 10, 14, 16, 14, 10, 5, 1, 1, 5, 11, 17, 21, 21, 17, 11, 5, 1, 1, 6, 15, 25, 34, 37, 34, 25, 15, 6, 1, 1, 6, 16, 29, 42, 50, 50, 42, 29, 16, 6, 1, 1, 7, 21, 41, 64, 82, 89, 82, 64, 41
OFFSET
0,5
COMMENTS
Main diagonal is A081207.
FORMULA
As a square array, defined by T1(i, j) = Sum_{k=0..min(i, j)} T(i, k)*T(j, k), T(i, j)=A046854(i, j)=binomial(floor((i+j)/2), j).
CROSSREFS
Sequence in context: A176353 A103691 A103441 * A333161 A156044 A180980
KEYWORD
easy,nonn,tabl
AUTHOR
Paul Barry, Mar 11 2003
STATUS
approved