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A115745 Pentagonal numbers (A000326) that are the product of 2 palindromes greater than 1. 2

%I

%S 12,22,35,176,330,2380,2625,2882,3432,3876,4845,8855,9801,12650,14652,

%T 15251,21901,26070,52360,61105,66045,84847,111657,137562,156332,

%U 197472,230300,254410,260625,270725,287547,295482,351142,359905

%N Pentagonal numbers (A000326) that are the product of 2 palindromes greater than 1.

%e 66045 is the 210th pentagonal number and 66045=111*595.

%Y Cf. A000326, A115683, A115743, A115744.

%K nonn,base

%O 1,1

%A _Giovanni Resta_, Jan 31 2006

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Last modified October 2 00:23 EDT 2022. Contains 357176 sequences. (Running on oeis4.)