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A362886
Antidiagonal sums of A362885.
1
1, 1, 4, 12, 37, 123, 440, 1686, 6901, 30085, 139212, 681336, 3515397, 19064135, 108370384, 644142962, 3994439189, 25789465377, 173033812804, 1204425693988, 8683782562597, 64757730613875, 498827437211176, 3964154812486062, 32463601480302005, 273670283527555869
OFFSET
0,3
FORMULA
a(n) = Sum_{k=0..n} (1 + 2*(n - k))*k^(n-k).
MATHEMATICA
Join[{1}, Table[Sum[(1+2(n-k))k^(n-k), {k, 0, n}], {n, 25}]]
CROSSREFS
Cf. A362885.
Sequence in context: A192907 A047088 A280891 * A149319 A149320 A362146
KEYWORD
nonn
AUTHOR
Stefano Spezia, May 08 2023
STATUS
approved