OFFSET
0,6
COMMENTS
Inspired by Philippe Deléham's formula for A371637.
FORMULA
Triangle T given by [0, 1, 0, 1, 0, 1, 0, 1, ...] DELTA [1, 4, 9, 16, 25, 36, ...] where DELTA is the operator defined by Deléham in A084938.
EXAMPLE
Triangle starts:
[0] [1]
[1] [0, 1]
[2] [0, 1, 5]
[3] [0, 1, 19, 61]
[4] [0, 1, 42, 498, 1385]
[5] [0, 1, 74, 1932, 19238, 50521]
[6] [0, 1, 115, 5290, 114830, 1057475, 2702765]
[7] [0, 1, 165, 11805, 449539, 8949633, 79160457, 199360981]
PROG
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Peter Luschny, Apr 21 2024
STATUS
approved