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A047028
T(n,n+3), array T given by A047020.
0
1, 4, 14, 48, 170, 611, 2214, 8135, 30171, 112589, 423114, 1598998, 6068246, 23125097, 88441638, 339234219, 1304756453, 5030574435, 19436510637, 75241443220, 291780678294, 1133270649257, 4407906226851, 17167267446803
OFFSET
0,2
CROSSREFS
Sequence in context: A007851 A368555 A014325 * A220819 A047138 A363468
KEYWORD
nonn
STATUS
approved