|
|
A042940
|
|
Convolution of Catalan numbers A000108(n+1), n >= 0, with A038846.
|
|
0
|
|
|
1, 18, 197, 1694, 12586, 84708, 530733, 3149542, 17910398, 98409532, 525628194, 2741723180, 14015785460, 70417793992, 348499310973, 1702076053686, 8216326834550, 39251274184780, 185770424237398, 871859230081092
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
0,2
|
|
COMMENTS
|
Also convolution of A018218(n+1), n >= 0, with itself; also convolution of A041001 with A000302 (powers of 4); also convolution of A041005 with A000984 (central binomial coefficients).
|
|
LINKS
|
|
|
FORMULA
|
|
|
CROSSREFS
|
|
|
KEYWORD
|
easy,nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|