A066127 Numbers that in base 2 need six 'Reverse and Add' steps to reach a palindrome.

275, 301, 317, 361, 377, 401, 523, 579, 587, 603, 619, 637, 761, 777, 833, 841, 857, 873, 1043, 1063, 1091, 1107, 1179, 1197, 1213, 1227, 1261, 1277, 1293, 1295, 1315, 1413, 1415, 1437, 1439, 1449, 1465, 1485, 1487, 1513, 1529, 1553, 1555, 1573

Offset: 1

Author

Klaus Brockhaus, Dec 08 2001

Keywords

• base
• nonn

Comments

The analog of A065211 in base 2. The number of steps starts at 0, so palindromes (cf. A006995) are excluded.

Numbers k such that A066057(k) = 6. - Andrew Howroyd, Dec 05 2024

Links

• Andrew Howroyd, Table of n, a(n) for n = 1..10000
• Index entries for sequences related to Reverse and Add!

Crossrefs

Cf. A006995, A065211, A066057, A066122.

Extensions

Offset changed from 0 to 1 by Harry J. Smith, Feb 01 2010