OFFSET
0,3
COMMENTS
See the denominators, multiples of 3, A256675(n).
a(n) is the numerator of the n-th term of the first column of the difference table of B(n+2).
Inverse binomial transform of B(n+2): 1/6, -1/6, 2/15, -1/15, -1/105, 1/21, -1/105, -1/15, 7/165, 5/33, ... .
CROSSREFS
KEYWORD
sign,frac
AUTHOR
Paul Curtz, Apr 23 2015
STATUS
approved