OFFSET
0,3
FORMULA
a(n) = Sum_{k=0..n} A059431(n,k).
EXAMPLE
a(6) = 0 + 478 + 1318 + 2404 + 3628 + 4903 + 6178 = 18909.
CROSSREFS
KEYWORD
nonn
AUTHOR
Petros Hadjicostas, Feb 16 2021
STATUS
approved