A109850 Numbers n such that a(A109849(n)) = n.

1, 2, 3, 4, 5, 8, 9, 12, 15, 16, 17, 32, 33, 60, 63, 64, 65, 104, 120, 125, 128, 129, 252, 255, 256, 257, 512, 513, 912, 972, 1008, 1017, 1020, 1023, 1024, 1025, 2000, 2025, 2040, 2045, 2048, 2049, 4092, 4095, 4096, 4097, 7712, 8160, 8177, 8192, 8193, 16380

Offset

1,2

Comments

2^n and 2^n + 1 seem to be in the sequence for all n. - Joshua Zucker, May 04 2006

Links

Table of n, a(n) for n=1..52.

Crossrefs

Cf. A109849.

Sequence in context: A275771 A118956 A372586 * A008749 A029000 A042962

Adjacent sequences: A109847 A109848 A109849 * A109851 A109852 A109853

Keyword

nonn

Author

Amarnath Murthy, Jul 06 2005

Extensions

More terms from Joshua Zucker, May 04 2006

Status

approved