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Powerful(1) numbers (A001694) whose digit reversal is a brilliant number (A078972).
2

%I #5 Mar 30 2012 17:40:35

%S 4,9,121,169,400,900,961,968,3481,3721,4000,9000,10201,12100,12167,

%T 12544,12769,16384,16900,17161,31684,40000,79507,90000,90601,94249,

%U 96100,96721,96800,121000,150544,169000,175616,192200,194672,195112

%N Powerful(1) numbers (A001694) whose digit reversal is a brilliant number (A078972).

%H <a href="/index/Pow#powerful">Index entries for sequences related to powerful numbers</a>

%e 968=2^3*11^2 is powerful and 869=11*79 is brilliant.

%Y Cf. A001694, A078972, A115675.

%K nonn,base

%O 1,1

%A _Giovanni Resta_, Jan 31 2006