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Search: id:A101504
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A101504 a(n+1)=a(n)/x+x, with x = Max(a(k): 0<=k<n and a(k)|a(n)), a(0)=a(1)=1. +0
2
1, 1, 2, 3, 4, 4, 5, 6, 5, 6, 7, 8, 6, 7, 8, 9, 6, 7, 8, 9, 10, 7, 8, 9, 10, 11, 12, 8, 9, 10, 11, 12, 13, 14, 9, 10, 11, 12, 13, 14, 15, 8, 9, 10, 11, 12, 13, 14, 15, 16, 10, 11, 12, 13, 14, 15, 16, 17, 18, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21 (list; graph; listen)
OFFSET

0,3

COMMENT

a(n)>a(n+1) iff a(n) is composite and a(n)>Max(a(k):0<=k<n);

a(A101505(n)) = n and a(m) < n for m < A101505(n).

CROSSREFS

Sequence in context: A092032 A058222 A064064 this_sequence A125568 A108872 A147847

Adjacent sequences: A101501 A101502 A101503 this_sequence A101505 A101506 A101507

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Dec 05 2004

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Last modified November 30 22:12 EST 2008. Contains 150989 sequences.


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