A253886 - OEIS

%I #5 Jan 18 2015 19:05:36

%S 0,2,4,8,6,14,10,20,24,26,12,32,16,38,34,44,18,50,22,56,54,62,28,68,

%T 48,74,64,80,30,86,36,92,84,98,76,104,40,110,94,116,42,122,46,128,114,

%U 134,52,140,120,146,124,152,58,158,90,164,144,170,60,176,66,182,154,188,118,194,70,200,174,206,72,212,78,218,184,224,142,230,82

%N Permutation of even numbers: a(n) = A250469(n+1) - 1.

%H Antti Karttunen, <a href="/A253886/b253886.txt">Table of n, a(n) for n = 0..5000</a>

%F a(n) = A250469(n+1) - 1.

%o (Scheme) (define (A253886 n) (- (A250469 (+ n 1)) 1))

%Y Cf. A250469, A253885, A249814.

%K nonn

%O 0,2

%A _Antti Karttunen_, Jan 18 2015