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A100973 Integers that are Rhonda numbers to base 9. 2
15540, 21054, 25331, 44360, 44660, 44733, 47652, 50560, 54944, 76857, 77142, 83334, 83694, 96448, 97944, 106575, 108273, 117624, 125952, 138966, 141204, 144236, 153318, 158417, 159424, 188529, 188598, 189350, 192000, 192126, 196652 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

See sequence A099542 for definition of Rhonda numbers and for some links.

LINKS

Table of n, a(n) for n=1..31.

Eric Weisstein's World of Mathematics, Rhonda Number

EXAMPLE

The product of the base 9 digits of 15540 is 2*3*2*7*6=504, the sum of the prime factors of 15540 is 2*2+3+5+7+37=56 and 504=9*56. So 15540 is a Rhonda number to base 9.

CROSSREFS

Cf. A099542 for base 10 Rhonda numbers and definition. Sequences of Rhonda numbers to other bases: A100968 (base 4), A100969 (base 6), A100970 (base 8), A100971 (base 12), A100972 (base 14).

Sequence in context: A154091 A035920 A201344 * A206104 A205654 A206183

Adjacent sequences:  A100970 A100971 A100972 * A100974 A100975 A100976

KEYWORD

easy,nonn,base

AUTHOR

Mark Hudson (mrmarkhudson(AT)hotmail.com), Nov 25 2004

STATUS

approved

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Last modified May 19 06:55 EDT 2013. Contains 225429 sequences.