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A051026 Number of primitive subsequences of {1, 2, ..., n}. +0
5
1, 2, 3, 5, 7, 13, 17, 33, 45, 73, 103, 205, 253, 505, 733, 1133, 1529, 3057, 3897, 7793, 10241, 16513, 24593, 49185, 59265, 109297, 163369, 262489, 355729, 711457, 879937, 1759873 (list; graph; listen)
OFFSET

0,2

LINKS

Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.

CROSSREFS

Sequence in context: A046732 A046703 A118722 this_sequence A028865 A053435 A096478

Adjacent sequences: A051023 A051024 A051025 this_sequence A051027 A051028 A051029

KEYWORD

nonn,nice

AUTHOR

Eric Weisstein (eric(AT)weisstein.com)

EXTENSIONS

More terms from David Wasserman (wasserma(AT)spawar.navy.mil), May 02 2002

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Last modified November 25 08:46 EST 2009. Contains 167481 sequences.


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