%I #10 Jun 23 2017 21:13:02
%S 1,2,3,5,10,28,25,37,10,20,15,38,19,42,36,34,2,35,39,31,13,2,6,26,28,
%T 29,4,14,42,5,20,17,4,20,16,29,42,13,42,20,8,23,33
%N Gobel's sequence A003504 read mod 43.
%H R. K. Guy, <a href="http://www.jstor.org/stable/2322249">The strong law of small numbers</a>. Amer. Math. Monthly 95 (1988), no. 8, 697-712.
%H R. K. Guy, <a href="/A005165/a005165.pdf">The strong law of small numbers</a>. Amer. Math. Monthly 95 (1988), no. 8, 697-712. [Annotated scanned copy]
%p t1:=[1,2]; a:=2;
%p for n from 1 to 41 do
%p b:=a*(a+n)/(n+1) mod 43;
%p t1:=[op(t1),b]; a:=b; od:
%p t1;
%Y Cf. A003504
%K nonn,fini,full
%O 0,2
%A _N. J. A. Sloane_, Jul 10 2015