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A104246 Minimal number of tetrahedral numbers needed to represent n. +0
18
1, 2, 3, 1, 2, 3, 4, 2, 3, 1, 2, 3, 4, 2, 3, 4, 5, 3, 4, 1, 2, 3, 4, 2, 3, 4, 5, 3, 4, 2, 3, 4, 5, 3, 1, 2, 3, 4, 2, 2, 3, 4, 3, 3, 2, 3, 4, 4, 3, 3, 4, 5, 4, 4, 2, 1, 2, 3, 3, 2, 3, 4, 4, 3, 3, 2, 3, 4, 4, 2, 3, 4, 5, 3, 3, 2, 3, 4, 4, 3, 4, 5, 5, 1, 2, 3, 4, 2, 3, 3, 2, 3, 4, 2, 3, 3, 4, 3, 4, 4, 3, 4 (list; graph; listen)
OFFSET

1,2

LINKS

Eric Weisstein's World of Mathematics, Tetrahedral Number

CROSSREFS

Cf. A000292 (tetrahedral numbers), A000797 (numbers that need 5 tetrahedral numbers).

See also A102795-A102806, A102855-A102858.

Sequence in context: A098066 A096436 A053610 this_sequence A007720 A129968 A027615

Adjacent sequences: A104243 A104244 A104245 this_sequence A104247 A104248 A104249

KEYWORD

nonn

AUTHOR

Eric Weisstein (eric(AT)weisstein.com), Feb 26, 2005

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.


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