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 A240025 Characteristic function of quarter squares, cf. A002620. 12
 1, 1, 1, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0 COMMENTS a(A002620(n)) = 1; a(A049068(n)) = 0. LINKS Reinhard Zumkeller, Table of n, a(n) for n = 0..10000 FORMULA a(n) = Max{A005369(n),A010052(n)}. PROG (Haskell) a240025 n = max (a005369 n) (a010052 n) CROSSREFS Cf. A000267 (partial sums), A002620, A005369, A010052, A049068. Sequence in context: A294905 A297086 A167752 * A100923 A050073 A266843 Adjacent sequences:  A240022 A240023 A240024 * A240026 A240027 A240028 KEYWORD nonn AUTHOR Reinhard Zumkeller, Jul 05 2014 STATUS approved

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Last modified October 23 11:19 EDT 2019. Contains 328345 sequences. (Running on oeis4.)