A244981 Permutation of natural numbers: a(n) = A122111(A102750(n)) / 2.

1, 2, 4, 3, 8, 6, 16, 5, 32, 12, 9, 64, 128, 10, 18, 24, 256, 7, 48, 20, 512, 15, 1024, 36, 96, 27, 2048, 192, 72, 14, 4096, 30, 8192, 40, 25, 384, 16384, 11, 144, 80, 32768, 54, 28, 288, 768, 65536, 21, 131072, 1536, 50, 108, 60, 262144, 160, 576, 45, 524288, 1048576, 3072, 320, 81, 120, 2097152, 22, 6144, 4194304, 42

Offset

1,2

Links

Antti Karttunen, Table of n, a(n) for n = 1..1024

Index entries for sequences that are permutations of the natural numbers

Formula

a(n) = A122111(A102750(n)) / 2.

Prog

(Scheme) (define (A244981 n) (/ (A122111 (A102750 n)) 2))

Crossrefs

Inverse: A244982.

Cf. A122111, A102750, A244983-A244984, A243505-A243506, A243065-A243066.

Sequence in context: A243053 A243052 A153212 * A284571 A124833 A181815

Adjacent sequences: A244978 A244979 A244980 * A244982 A244983 A244984

Keyword

nonn

Author

Antti Karttunen, Jul 20 2014

Status

approved