OFFSET
0,3
EXAMPLE
a(7) = Sum_{k=1..8} |A341287(7,k)| = |-50| + |267| + |-98| + |-364| + |105| + |119| + |21| + 1 = 1025.
CROSSREFS
KEYWORD
nonn
AUTHOR
Petros Hadjicostas, Feb 08 2021
STATUS
approved