%I #11 Oct 16 2021 12:20:24
%S 10,16,22,34,52,82,130,304,772,1906,6406,25606,153094,1388692,
%T 20481682,541595266,22571209318,2359835005720,621877793937184,
%U 441783186105790852,1256072821702053660754
%N a(n+1) = a(n) converted to base 10 from base 16.
%H Vincenzo Librandi, <a href="/A055987/b055987.txt">Table of n, a(n) for n = 0..40</a>
%t NestList[FromDigits[IntegerDigits[#],16]&,10,20] (* _Vincenzo Librandi_, Apr 06 2012 *)
%o (Python)
%o def aupton(nn):
%o alst = [10]
%o for n in range(1, nn+1):
%o alst.append(int(str(alst[-1]), 16))
%o return alst
%o print(aupton(20)) # _Michael S. Branicky_, Oct 16 2021
%Y Cf. A055986.
%K base,nonn
%O 0,1
%A _Henry Bottomley_, Jun 01 2000