

A066871


Harshad (or Niven) amicable pairs: numbers which belong to an amicable pair in which both terms are Harshad (or Niven) numbers.


1



2620, 2924, 10634085, 14084763, 23389695, 25132545, 34256222, 35997346, 46521405, 53011395, 63560025, 65003175, 80422335, 82977345, 120812175, 126671985, 190888155, 194594085, 256948065, 263110815, 281499435, 297034965
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OFFSET

1,1


COMMENTS

In first 5000 amicable pairs, there are 192 Harshad amicable numbers.


LINKS

Amiram Eldar, Table of n, a(n) for n = 1..20000
Shyam Sunder Gupta, Amicable Numbers.


EXAMPLE

a(1) = 2620 and a(2) = 2924, where a(1) and a(2) are Harshad numbers and also (2620, 2924) is an amicable pair.


CROSSREFS

Cf. A063990, A005349.
Sequence in context: A257420 A254236 A252440 * A180650 A245008 A180330
Adjacent sequences: A066868 A066869 A066870 * A066872 A066873 A066874


KEYWORD

nonn,base


AUTHOR

Shyam Sunder Gupta, Jan 21 2002


STATUS

approved



