login
A211973
a(n) = A121880(2*n)/2.
3
1, 5, 22, 91, 369, 1486, 5962, 23884, 95607, 382568, 1530552, 6122765, 24492171, 97970902, 391888040, 1567561019, 6270261786, 25081082556, 100324401036, 401297745749, 1605191266193, 6420765631136, 25683063657239, 102732256894319
OFFSET
1,2
CROSSREFS
Bisection of A093370.
Sequence in context: A216597 A085812 A172061 * A053297 A071715 A278472
KEYWORD
nonn
AUTHOR
Omar E. Pol, Nov 30 2012
EXTENSIONS
More terms from Hakan Icoz, Sep 04 2020
STATUS
approved