login
A027212
a(n) = Sum_{k=0..n} (k+1) * A026725(n, n-k).
1
1, 3, 8, 23, 55, 144, 328, 816, 1808, 4358, 9485, 22377, 48097, 111720, 237917, 546161, 1154827, 2626624, 5522464, 12467540, 26092324, 58546544, 122059348, 272479782, 566242186, 1258568324, 2608232758, 5775620396, 11940756076
OFFSET
0,2
MAPLE
A027212 := proc(n)
add( (k+1)*A026725(n, n-k), k=0..n) ;
end proc: # R. J. Mathar, Oct 21 2019
CROSSREFS
Sequence in context: A296286 A068602 A255834 * A027236 A353169 A027244
KEYWORD
nonn
EXTENSIONS
Name corrected by R. J. Mathar, Oct 21 2019
STATUS
approved