|
Search: id:A113349
|
|
| |
|
| 1, 14, 203, 3367, 64750, 1435497, 36312626, 1036877170, 33086963196, 1169366274321, 45412092740791, 1924418011638535, 88445828358934074, 4384910640997110602, 233384463606862044134, 13278878088344760573344
(list; graph; listen)
|
|
|
OFFSET
|
0,2
|
|
|
COMMENT
|
A113345 is the matrix square of A113340.
|
|
PROGRAM
|
(PARI) {a(n)=local(A, B); A=matrix(1, 1); A[1, 1]=1; for(m=2, n+4, B=matrix(m, m); for(i=1, m, for(j=1, i, if(i<3|j==i|j>m-1, B[i, j]=1, if(j==1, B[i, 1]=1, B[i, j]=(A^(2*j-1))[i-j+1, 1])); )); A=B); (A^2)[n+4, 4]}
|
|
CROSSREFS
|
Cf. A113340, A113345, A113346 (column 0), A113347 (column 1), A113348 (column 2); A113350.
Sequence in context: A041366 A051817 A068769 this_sequence A109764 A002961 A063071
Adjacent sequences: A113346 A113347 A113348 this_sequence A113350 A113351 A113352
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Paul D. Hanna (pauldhanna(AT)juno.com), Nov 08 2005
|
|
|
Search completed in 0.002 seconds
|
