A092211 a(n) = smallest k such that the base-2 Reverse and Add! trajectory of A075252(n) joins the trajectory of k.

1, 64, 442, 454, 107, 1066, 1081, 1082, 1085, 1115, 1562, 911, 1070, 266, 3355, 98, 3871, 4099, 4152, 1274, 74, 4202, 4262, 4182, 275, 4633, 4666, 4114, 6166, 6374, 9241, 9466, 8312, 16418, 16490, 16601, 16613, 16616, 298, 16748, 16994, 17002

Offset

1,2

Comments

a(n) <= A075252(n); a(n) = A075252(n) iff the trajectory of A075252(n) does not join the trajectory of any smaller number, i.e., A075252(n) is also a term of A092210.

a(n) determines a 1-1-mapping from the terms of A075252 to the terms of A092210. For the inverse mapping cf. A092212.

Base-2 analog of A089493 (base 10) and A091676 (base 4).

Links

Table of n, a(n) for n=1..42.

Index entries for sequences related to Reverse and Add!

Example

A075252(1) = 22, the trajectory of 22 (A061561) joins the trajectory of 1 = A092210(1) at 48960, so a(1) = 1. A075252(12) = 1575, the trajectory of 1575 joins the trajectory of 911 = A092210(17) at 184680, so a(12) = 911.

Crossrefs

Cf. A075252, A092210, A092212, A061561, A089493, A091676.

Sequence in context: A282771 A188821 A181210 * A130812 A187518 A221070

Adjacent sequences: A092208 A092209 A092210 * A092212 A092213 A092214

Keyword

nonn,base

Author

Klaus Brockhaus, Feb 25 2004

Status

approved