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A026894
T(2n,n+1), T given by A026780.
0
1, 5, 23, 106, 496, 2361, 11425, 56128, 279530, 1409242, 7182570, 36965292, 191896092, 1003889999, 5288020783, 28026601758, 149362212188, 799947847992, 4303496405324, 23245282077346, 126020035603358, 685477891161324
OFFSET
1,2
CROSSREFS
Sequence in context: A107839 A270530 A128732 * A126473 A238112 A109877
KEYWORD
nonn
STATUS
approved