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Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!) A027036 Partial sums of A027035. 1 1, 3, 8, 22, 61, 173, 496, 1428, 4121, 11911, 34476, 99942, 290185, 843933, 2458296, 7171728, 20952569, 61295779, 179539052, 526476666, 1545434817, 4540842657, 13353733048, 39302395732, 115759913681, 341189589287 (list; graph; refs; listen; history; text; internal format) OFFSET 0,2 LINKS Table of n, a(n) for n=0..25. CROSSREFS Sequence in context: A048579 A121449 A025566 * A371978 A018040 A018041 Adjacent sequences: A027033 A027034 A027035 * A027037 A027038 A027039 KEYWORD nonn AUTHOR Clark Kimberling STATUS approved

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Last modified August 18 11:05 EDT 2024. Contains 375265 sequences. (Running on oeis4.)