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Search: id:A115891
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A115891 Numbers n such that n times phi(n) is a palindrome. +0
5
1, 2, 3, 4, 17, 21, 206, 296, 309, 314, 392, 412, 444, 3016, 3074, 3182, 3552, 3632, 4944, 12998, 52009, 296448, 2306507, 2343809, 2958948, 3842106, 4419666, 14697047, 15137567, 21150749, 25829523, 29916818, 41798278 (list; graph; listen)
OFFSET

1,2
EXAMPLE

25829523*phi(25829523)=25829523*17219628=444774777477444.

CROSSREFS

Cf. A084122, A115890, A115892.

Sequence in context: A066103 A004833 A111191 this_sequence A037394 A037430 A077407

Adjacent sequences: A115888 A115889 A115890 this_sequence A115892 A115893 A115894

KEYWORD

nonn,base

AUTHOR

Giovanni Resta (g.resta(AT)iit.cnr.it), Feb 06 2006

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Last modified November 18 20:14 EST 2008. Contains 147244 sequences.

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