A211973 a(n) = A121880(2*n)/2.

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

Links

Hakan Icoz, Table of n, a(n) for n = 1..100

Index entries for sequences related to curling numbers

Crossrefs

Bisection of A093370.

Cf. A093371, A122536, A216955.

Sequence in context: A216597 A085812 A172061 * A053297 A071715 A278472

Adjacent sequences: A211970 A211971 A211972 * A211974 A211975 A211976

Keyword

nonn

Author

Omar E. Pol, Nov 30 2012

Extensions

More terms from Hakan Icoz, Sep 04 2020

Status

approved