OFFSET
0,2
FORMULA
a(n) = 2 * A256249(n).
MATHEMATICA
2*Accumulate[Flatten[{0, Table[Range[1, 2^n - 1, 2], {n, 0, 7}]}]] (* Jake L Lande, Aug 05 2024 *)
CROSSREFS
KEYWORD
nonn,less
AUTHOR
Omar E. Pol, Jan 12 2016
STATUS
approved