A227742 Fixed points of permutation A227741.

1, 4, 8, 12, 16, 23, 28, 32, 36, 43, 51, 59, 64, 71, 76, 80, 84, 91, 99, 107, 115, 126, 135, 143, 148, 155, 163, 171, 176, 183, 188, 192, 196, 203, 211, 219, 227, 238, 247, 255, 263, 274, 286, 298, 307, 318, 327, 335, 340, 347, 355, 363, 371, 382, 391, 399, 404

Offset

1,2

Links

Antti Karttunen, Table of n, a(n) for n = 1..1000

Formula

a(n) = A173318(2*(n-1)) + (1/2)*(1 + A005811((2n)-1)).

Prog

(Scheme) (define (A227742 n) (+ (A173318 (* 2 (- n 1))) (/ (+ 1 (A005811 (- (* 2 n) 1))) 2)))

Crossrefs

Sequence in context: A311387 A311388 A311389 * A257791 A034032 A311390

Adjacent sequences: A227739 A227740 A227741 * A227743 A227744 A227745

Keyword

nonn

Author

Antti Karttunen, Jul 25 2013

Status

approved