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A047046
T(n,n+1), array T as in A047040; T(n+1,n), array T given by A047050.
0
1, 2, 5, 14, 42, 146, 513, 1814, 6457, 23852, 88822, 331756, 1241569, 4704536, 17919729, 68426280, 261659138, 1005583928, 3876858984, 14975423376, 57918225459, 224542599510, 872234912198, 3393031324338, 13212674724177
OFFSET
0,2
CROSSREFS
Sequence in context: A148332 A000751 A000744 * A063545 A061058 A060795
KEYWORD
nonn
STATUS
approved