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A074197 Let b(1) = n, b(k+1) = b(k)/2 + k if b(k) is even, b(k+1)= b(k)-k otherwise; sequence gives values of b(1) = n such that b(k)= 2k-4 for k large enough. +0
1
1, 11, 16, 18, 39, 44, 53, 57, 74, 102, 110, 111, 116, 125, 147, 152, 155, 160, 201, 218, 246, 273 (list; graph; listen)
OFFSET

1,2

FORMULA

a(n)/n/log(n) seems bounded and maybe a(n) is asymptotic to c*n*log(n) where 3<c<5.

CROSSREFS

Adjacent sequences: A074194 A074195 A074196 this_sequence A074198 A074199 A074200

Sequence in context: A097156 A138791 A132990 this_sequence A106673 A131858 A110031

KEYWORD

nonn

AUTHOR

Benoit Cloitre (benoit7848c(AT)orange.fr), Sep 16 2002

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Last modified October 13 20:18 EDT 2008. Contains 145016 sequences.


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