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 A367809 a(n) = Sum_{k=0..n} A011971(n, k) * (-2)^(n - k). 2
 1, 0, 7, -17, 166, -931, 8333, -67902, 668341, -6733957, 74909152, -875130273, 10931723505, -143624036492, 1989841289619, -28881136161245, 438657928012966, -6948176832355895, 114571387874994353, -1962292996833874918, 34849770255925089153, -640681440719312240225, 12174584322610783966760 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 COMMENTS The Peirce/Aitken polynomials evaluated at -1/2 and the result normalized with (-2)^n. LINKS Table of n, a(n) for n=0..22. PROG (Python) # Using the function b from A367808. def a(n): return sum(b(n)[k] * (-2) ** (n - k) for k in range(n + 1)) print([a(n) for n in range(23)]) CROSSREFS Cf. A011971, A367808. Sequence in context: A375426 A214149 A147643 * A061159 A178694 A140122 Adjacent sequences: A367806 A367807 A367808 * A367810 A367811 A367812 KEYWORD sign AUTHOR Peter Luschny, Dec 01 2023 STATUS approved

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Last modified September 11 10:08 EDT 2024. Contains 375827 sequences. (Running on oeis4.)