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%I #6 Dec 15 2017 17:36:46
%S 60,460,640,820,1360,1480,1620,1870,2110,2380,3460,3630,3880,4560,
%T 4650,5640,5650,5860,6210,6310,6360,6420,7480,8170,8680,8830,11680,
%U 11830,12280,12640,12820,13780,14620,15460,15640,15660,15880,16410,16420
%N Let f(x)=(largest digit of x)^(smallest digit of x) + x (A097385). Sequence gives numbers n such that f(n) and f(n+1) are both prime.
%C Conjecture: Terms will always be multiples of ten. Aug 21, 2004: _Dean Hickerson_ proved this.
%e 640 is in the sequence because 6^0 + 640 = 641 and 6^1 + 641 = 647, both prime.
%Y Cf. A054054, A054055, A097385, A097386.
%K base,easy,nonn
%O 1,1
%A _Jason Earls_, Aug 18 2004
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