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 A055554 An arithmetic progression each term of which is followed by at least 4 nonsquarefree consecutive integers. 0
 242, 1757711582, 3515422922, 5273134262, 7030845602, 8788556942, 10546268282, 12303979622, 14061690962, 15819402302, 17577113642, 19334824982, 21092536322, 22850247662, 24607959002, 26365670342 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS From the terms of A051681 or A045882 similar progressions for longer chains can be constructed. LINKS Tanya Khovanova, Recursive Sequences Index entries for linear recurrences with constant coefficients, signature (2, -1). FORMULA a(n) = d*n + 242, where d = LCM(242, 243, 244, 245) = 1757711340 = 2*2*3*3*3*3*3*5*7*11*11*61. CROSSREFS Cf. A005117, A013929, A053806, A053797, A045882, A051681. Sequence in context: A022153 A194788 A013472 * A214105 A018871 A223021 Adjacent sequences:  A055551 A055552 A055553 * A055555 A055556 A055557 KEYWORD nonn,changed AUTHOR Labos Elemer, Jul 10 2000 STATUS approved

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