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A066870 Happy amicable pairs: numbers which belong to an amicable pair in which both terms are happy numbers. 1
10572550, 10854650, 32685250, 34538270, 35361326, 40117714, 35390008, 39259592, 186878110, 196323170, 242126704, 257841296, 250876395, 323303445, 300208696, 313576904, 388904355, 465418845, 395939775, 499717185, 541114808 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
In first 5000 Amicable pairs, there are 111 happy amicable numbers.
LINKS
Shyam Sunder Gupta, Amicable Numbers.
EXAMPLE
a(1) = 10572550 and a(2) = 10854650, where a(1) and a(2) are happy numbers and also (10572550, 10854650) is an amicable pair.
CROSSREFS
Sequence in context: A185805 A306476 A251640 * A340110 A250963 A233500
KEYWORD
nonn,base
AUTHOR
Shyam Sunder Gupta, Jan 21 2002
STATUS
approved

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Last modified June 21 21:50 EDT 2024. Contains 373559 sequences. (Running on oeis4.)