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A349973
a(n) = Sum_{k=0..n} k*A349976(n, k).
2
0, 1, 4, 12, 34, 89, 226, 554, 1328, 3104, 7158, 16235, 36420, 80797, 177789, 387968, 841696, 1814473, 3892920, 8313588, 17686711, 37486091, 79213997, 166888364, 350720648, 735273025, 1538259673, 3211682091, 6693935172, 13928034709, 28936571039, 60032053097
OFFSET
0,3
CROSSREFS
Cf. A349976.
Sequence in context: A209818 A094893 A036880 * A107069 A191823 A110335
KEYWORD
nonn
AUTHOR
Peter Luschny, Dec 12 2021
STATUS
approved