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A094222 a(n+1)=a(n)+(number of distinct prime factors of a(n)) for n>1; a(1)=1, a(2)=2. +0
1
1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 14, 16, 17, 18, 20, 22, 24, 26, 28, 30, 33, 35, 37, 38, 40, 42, 45, 47, 48, 50, 52, 54, 56, 58, 60, 63, 65, 67, 68, 70, 73, 74, 76, 78, 81, 82, 84, 87, 89, 90, 93, 95, 97, 98, 100, 102, 105, 108, 110, 113, 114, 117, 119, 121, 122, 124 (list; graph; listen)
OFFSET

1,2

CROSSREFS

Cf. A001220.

Sequence in context: A072378 A112587 A068090 this_sequence A082415 A005236 A051250

Adjacent sequences: A094219 A094220 A094221 this_sequence A094223 A094224 A094225

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)lhsystems.com), May 28 2004

page 1

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Last modified July 23 17:35 EDT 2008. Contains 142285 sequences.


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