A105104 Write A102370 in binary (A103542), read backwards, omit leading zeros, convert to base 10.

0, 3, 3, 5, 1, 15, 5, 9, 1, 13, 7, 11, 7, 29, 9, 17, 1, 25, 13, 21, 5, 31, 11, 19, 3, 27, 15, 47, 13, 57, 17, 33, 1, 49, 25, 41, 9, 61, 21, 37, 5, 53, 29, 45, 15, 59, 19, 35, 3, 51, 27, 43, 11, 63, 23, 39, 7, 55, 63, 93, 25, 113, 33, 65, 1, 97, 49, 81, 17, 121, 41, 73

Offset

0,2

Comments

Similar to A102370, but read diagonals in reverse direction.

Links

Table of n, a(n) for n=0..71.

David Applegate, Benoit Cloitre, Philippe Deléham and N. J. A. Sloane, Sloping binary numbers: a new sequence related to the binary numbers [pdf, ps].

Formula

a(n) = A030101(A102370(n)). - Philippe Deléham, Nov 11 2007

Prog

(PARI) a1(n) = fromdigits(Vecrev(binary(n)), 2); \\ A030101
a0(n) = if( n<1, 0, sum(k=0, length(binary(n)), bitand(n + k, 2^k))); \\ A102370
a(n) = a1(a0(n)); \\ Michel Marcus, Apr 09 2022

Crossrefs

Cf. A030101, A102370, A103542.

Sequence in context: A205550 A209389 A337544 * A229087 A142961 A348298

Adjacent sequences: A105101 A105102 A105103 * A105105 A105106 A105107

Keyword

nonn,base

Author

N. J. A. Sloane, Apr 30 2005

Extensions

More terms from Philippe Deléham, Nov 11 2007

a(46)=19 inserted and more terms from Georg Fischer, Apr 08 2022

Status

approved