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A367775 a(n) = Sum_{k=0..n} (-1)^(n - k) * A011971(n, k). 0

%I #6 Dec 02 2023 06:16:31

%S 1,1,4,7,37,94,587,1925,13606,54217,424381,1979704,16918869,90086877,

%T 831972372,4964577987,49154794969,324183365662,3419501188439,

%U 24655458609377,275624716500750,2153735319395661,25406228456463665,213606545948092304,2649077873736448473

%N a(n) = Sum_{k=0..n} (-1)^(n - k) * A011971(n, k).

%C Alternating row sums of the Peirce/Aitken/Bell triangle A011971.

%o (Python) # Using the function b from A367808.

%o def a(n): return sum(b(n)[k] * (-1)**(n - k) for k in range(n + 1))

%o print([a(n) for n in range(25)])

%Y Cf. A011971, A005493, A367808, A367809.

%K nonn

%O 0,3

%A _Peter Luschny_, Dec 02 2023

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Last modified September 4 23:23 EDT 2024. Contains 375685 sequences. (Running on oeis4.)