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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
OFFSET
1,1
COMMENTS
From the terms of A051681 or A045882 similar progressions for longer chains can be constructed.
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
KEYWORD
nonn
AUTHOR
Labos Elemer, Jul 10 2000
STATUS
approved