%I #8 Jul 29 2014 13:48:25
%S 2,4,6,10,8,16,12,28,26,22,14,46,18,34,36,82,20,76,24,64,56,40,30,136,
%T 50,52,126,100,32,106,38,244,66,58,78,226,42,70,86,190,44,166,48,118,
%U 176,88,54,406,122,148,96,154,60,376,92,298,116,94,62,316,68,112,276,730,120
%N Permutation of even numbers: a(n) = 2*A048673(n).
%H Antti Karttunen, <a href="/A243501/b243501.txt">Table of n, a(n) for n = 1..10001</a>
%F a(n) = 2*A048673(n).
%F a(n) = A003961(n) + 1.
%F a(n) = A243502(A245447(n)).
%o (Scheme, two different versions)
%o (define (A243501 n) (+ 1 (A003961 n)))
%o (define (A243501v2 n) (* 2 (A048673 n)))
%Y Cf. A243502, A245447, A245448, A244319, A245605-A245606, A245607-A245608.
%K nonn
%O 1,1
%A _Antti Karttunen_, Jul 21 2014