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 A261644 Distance of A260273(n) to next power of 2. 6
 1, 1, 3, 8, 5, 1, 15, 12, 9, 5, 1, 31, 28, 25, 20, 13, 8, 3, 63, 60, 57, 52, 47, 44, 41, 37, 33, 29, 24, 17, 13, 8, 3, 127, 124, 121, 116, 111, 108, 105, 99, 91, 88, 85, 81, 77, 70, 66, 62, 57, 52, 47, 40, 33, 29, 24, 15, 10, 6, 2, 254, 251, 248, 245, 239 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 COMMENTS This sequence, as well as A261712, is suggested by A261396 and A261416. LINKS Reinhard Zumkeller, Rows n = 1..20 of triangle, flattened FORMULA a(n) = A062383(A260273(n)) - A260273(n). EXAMPLE . 1: 1 . 2: 1 . 3: 3 . 4: 8,5,1 . 5: 15,12,9,5,1 . 6: 31,28,25,20,13,8,3 . 7: 63,60,57,52,47,44,41,37,33,29,24,17,13,8,3 . 8: 127,124,121,116,111,108,105,99,91,88,85,81,77,70,... (27 terms) . 9: 254,251,248,245,239,236,233,227,218,213,207,202,195,,... (49 terms) PROG (Haskell) a261644 n = a261644_list !! (n-1) a261644_list = zipWith (-) (map a062383 a260273_list) \$ map fromIntegral a260273_list a261644_tabf = [1] : f (tail \$ zip a261645_list a261644_list) where f dxs = (map snd (dxs'' ++ [dx])) : f dxs' where (dxs'', dx:dxs') = span ((<= 0) . fst) dxs a261644_row n = a261644_tabf !! (n-1) CROSSREFS Cf. A260273, A062383, A261645 (first differences), A261712 (reversed), A261646 (row lengths). Sequence in context: A221315 A131653 A011239 * A345449 A348026 A200699 Adjacent sequences: A261641 A261642 A261643 * A261645 A261646 A261647 KEYWORD nonn,tabf AUTHOR Reinhard Zumkeller, Aug 30 2015 STATUS approved

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Last modified August 12 10:21 EDT 2024. Contains 375092 sequences. (Running on oeis4.)