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A145172 Number of pentagonal numbers needed to represent n with greedy algorithm. +0
1
1, 2, 3, 4, 1, 2, 3, 4, 5, 2, 3, 1, 2, 3, 4, 5, 2, 3, 4, 5, 6, 1, 2, 3, 4, 5, 2, 3, 4, 5, 6, 3, 4, 2, 1, 2, 3, 4, 5, 2 (list; graph; listen)
OFFSET

1,2

COMMENT

Sequence is unbounded.

EXAMPLE

a(21)=6 since 21=12+5+1+1+1+1

CROSSREFS

Sequence in context: A053344 A092196 A100878 this_sequence A053824 A033925 A064866

Adjacent sequences: A145169 A145170 A145171 this_sequence A145173 A145174 A145175

KEYWORD

nonn

AUTHOR

Christina Steffan (christina.steffan(AT)gmx.at), Oct 03 2008

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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