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A026715
T(2n,n), T given by A026714.
0
1, 3, 13, 63, 319, 1647, 8583, 44941, 235913, 1240173, 6524919, 34346785, 180855499, 952494047, 5017037457, 26428222177, 139223327493, 733452042061, 3864043260671, 20357263645411, 107251092223601, 565050705077767
OFFSET
0,2
CROSSREFS
Sequence in context: A284160 A092467 A034478 * A001850 A130525 A362744
KEYWORD
nonn
STATUS
approved