

A191971


Square array A(i,j) related to the square array T(i,j) of A192062


1



2, 2, 1, 2, 1, 2, 2, 1, 3, 3, 2, 1, 4, 4, 2, 2, 1, 5, 5, 7, 5, 2, 1, 6, 6, 14, 11, 2, 2, 1, 7, 7, 23, 19, 18, 7, 2, 1, 8, 8, 34, 29, 52, 29, 2, 2, 1, 9, 9, 47, 41, 110, 71, 47, 9, 2, 1, 10, 10, 62, 55, 198, 139, 194, 76, 2, 2, 1, 11, 11, 79, 71, 322, 239, 527, 265, 123, 11, 2, 1, 12, 12, 98, 89, 488, 377, 1154, 666, 724, 199, 2
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OFFSET

0,1


COMMENTS

A(i,j) * T(i,j) of A192062 equals T(2*i,j) of A192062. Here j goes from 0 to 12


LINKS

Table of n, a(n) for n=0..90.


FORMULA

Each column is defined as follows. A(0,j) = 2, A(1,j) = 1, For i>0 A(2*i,j) = j*A(2*i1,j)+A(2*i2,j), A(2*i+1,j) = A(2*i,j)+A(2*i1,j).
For i > 1, A(i+2,j) = A(i,j)*(j+2)  A(i2,j)
A(6*i,j) = A(2*i,j)*(A(4*i,j)1)
A(6*i+3,j) = A(2*i+1,j)*(A(4*i+2,j)+1)


EXAMPLE

A(3,1) = 4


CROSSREFS

A192062
Sequence in context: A119469 A127439 A218775 * A156051 A091267 A003643
Adjacent sequences: A191968 A191969 A191970 * A191972 A191973 A191974


KEYWORD

nonn,tabl


AUTHOR

Kenneth J Ramsey, Jul 07 2011


STATUS

approved



