A253885 Permutation of even numbers: a(n) = A003961(n+1) - 1.

0, 2, 4, 8, 6, 14, 10, 26, 24, 20, 12, 44, 16, 32, 34, 80, 18, 74, 22, 62, 54, 38, 28, 134, 48, 50, 124, 98, 30, 104, 36, 242, 64, 56, 76, 224, 40, 68, 84, 188, 42, 164, 46, 116, 174, 86, 52, 404, 120, 146, 94, 152, 58, 374, 90, 296, 114, 92, 60, 314, 66, 110, 274, 728, 118, 194, 70, 170, 144, 230, 72, 674, 78, 122, 244, 206, 142, 254, 82

Offset: 0

Author

Antti Karttunen, Jan 18 2015

Keywords

• nonn

Links

• Antti Karttunen, Table of n, a(n) for n = 0..10000

Crossrefs

Cf. A003961, A253886, A243501, A246684.

Programs

Scheme

(define (A253885 n) (- (A003961 (+ n 1)) 1))

Formula

a(n) = A003961(n+1) - 1.

a(n) = A243501(n+1) - 2.