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A362587
a(n) = 2^n * A094088(n). Row sums of A362586.
2
1, 2, 28, 968, 62512, 6487712, 987533248, 207257057408, 57359688424192, 20240182500956672, 8869195638810631168, 4725115451770644482048, 3007722163880719988764672, 2254432760608214922012434432, 1965374406868398554356767244288, 1971745067277979562424894483365888
OFFSET
0,2
PROG
(SageMath)
def A362587(n) :
@cached_function
def f(n) :
if n == 0 : return 1
if n % 2 != 0 : return 0
return sum(f(k) * binomial(n, k) for k in range(n)[::2])
return 2^n * f(2 * n)
print([A362587(n) for n in range(16)])
CROSSREFS
Sequence in context: A264637 A352251 A012756 * A009403 A026944 A296464
KEYWORD
nonn
AUTHOR
Peter Luschny, Apr 26 2023
STATUS
approved