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Search: id:A067859
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A067859 a(1) = 1; a(n+1) = floor(sqrt(sum{k=1 to n} a(k)^2)). +0
1
1, 1, 1, 1, 2, 2, 3, 4, 6, 8, 11, 16, 22, 31, 44, 62, 87, 123, 174, 246, 348, 492, 695, 983, 1390, 1966, 2780, 3931, 5559, 7862, 11118, 15723, 22236, 31446, 44471, 62892, 88942, 125783, 177884, 251566, 355768, 503132, 711536, 1006263, 1423071 (list; graph; listen)
OFFSET

1,5

LINKS

Leroy Quet, Home Page (listed in lieu of email address)

EXAMPLE

a(6) = floor(sqrt(1^2 + 1^2 + 1^2 + 1^2 + 2^2)) = floor(sqrt(8)) = 2.

CROSSREFS

Sequence in context: A089333 A098492 A103632 this_sequence A006207 A017912 A102543

Adjacent sequences: A067856 A067857 A067858 this_sequence A067860 A067861 A067862

KEYWORD

easy,nonn

AUTHOR

Leroy Quet Feb 15 2002

page 1

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Last modified December 21 10:15 EST 2009. Contains 171081 sequences.


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