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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

Table of n, a(n) for n=1..16.

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

AUTHOR

Labos Elemer, Jul 10 2000

STATUS

approved

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Last modified June 22 07:47 EDT 2017. Contains 288605 sequences.