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A047019
T(2n,n), array T given by A047010.
0
1, 1, 3, 15, 91, 521, 3165, 19723, 122915, 777871, 4960453, 31763531, 204603229, 1323059284, 8582389291, 55845106760, 364271278595, 2381222063123, 15596492535183, 102326544493192, 672373002896261, 4424149221222769
OFFSET
0,3
CROSSREFS
Sequence in context: A034954 A077783 A347319 * A371490 A099251 A364740
KEYWORD
nonn
STATUS
approved