login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A100969 Integers n that are Rhonda numbers to base 6. 17
855, 1029, 3813, 5577, 7040, 7304, 15104, 19136, 35350, 36992, 41031, 42009, 60368, 65536, 67821, 76880, 84525, 90601, 122831, 131175, 154570, 162565, 184009, 184585, 196504, 217021, 219830, 222200, 252161, 256041, 268677, 353115, 355737 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

See sequence A099542 for definition of Rhonda numbers and links.

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 1..1000

Eric Weisstein's World of Mathematics, Rhonda Number

Wikipedia, Senary

EXAMPLE

The product of the base 6 digits of 507500 is 1*4*5*1*3*3*1*2=360 and the sum of the prime factors of 507500 is 2*2+4*5+7+29=60 and 360=6*60.

PROG

(Haskell)

a100969 n = a100969_list !! (n-1)

a100969_list = filter (rhonda 6) a248910_list

-- Function rhonda as in A099542.

-- Reinhard Zumkeller, Mar 08 2015

CROSSREFS

Cf. Rhonda numbers to other bases: A100968 (base 4), A100970 (base 8), A100973 (base 9), A099542 (base 10), A100971 (base 12), A100972 (base 14), A100974 (base 15), A100975 (base 16), A255735 (base 18), A255732 (base 20), A255736 (base 30), A255731 (base 60), see also A255872.

Cf. A001414, A027746, A007092, subsequence of A248910.

Column k=2 of A291925.

Sequence in context: A085323 A185639 A105275 * A183998 A209502 A198527

Adjacent sequences:  A100966 A100967 A100968 * A100970 A100971 A100972

KEYWORD

easy,nonn,base

AUTHOR

Mark Hudson (mrmarkhudson(AT)hotmail.com), Nov 24 2004

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified September 16 23:53 EDT 2021. Contains 347477 sequences. (Running on oeis4.)