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Search: id:A020755
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A020755 Increasing gaps between square-free numbers (upper end). +0
4
2, 5, 10, 51, 246, 849, 22026, 217077, 1092755, 8870033, 221167433, 47255689927, 82462576233, 1043460553378, 79180770078563 (list; graph; listen)
OFFSET

1,1

EXAMPLE

The first gap in A005117 occurs between 1 and 2 and has length 1. The next largest gap occurs between 3 and 5 and has length 2. The next largest gap is between 7 and 10 and has length 3. Etc. We are only interested in gaps that set new records.

CROSSREFS

Cf. A005117, A020754, A020753, A045882, A051681.

Sequence in context: A082593 A124664 A076776 this_sequence A018503 A018535 A140304

Adjacent sequences: A020752 A020753 A020754 this_sequence A020756 A020757 A020758

KEYWORD

nonn,hard

AUTHOR

David W. Wilson (davidwwilson(AT)comcast.net)

EXTENSIONS

Thanks to Christian Bower for additional comments.

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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