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A106037 Special highly composite numbers: a highly composite number (A002182) that divides all larger highly composite numbers. +0
9
1, 2, 6, 12, 60, 2520 (list; graph; listen)
OFFSET

1,2

REFERENCES

J. L. Nicolas, On highly composite numbers, pp. 215-244 in Ramanujan Revisited, Editors G. E. Andrews et al., Academic Press 1988.

S. Ratering, An interesting subset of the highly composite numbers, Math. Mag., 64 (1991), 343-346.

CROSSREFS

Cf. A002182, A002201, A000005.

Cf. A072938.

Sequence in context: A085819 A069047 A095921 this_sequence A136240 A090747 A076220

Adjacent sequences: A106034 A106035 A106036 this_sequence A106038 A106039 A106040

KEYWORD

nonn,fini,full

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), May 27 2005

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Last modified December 16 17:18 EST 2009. Contains 170825 sequences.


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