A107684 -id:A107684 - cp's OEIS frontend

A107686 If n=0 then 0 else smallest number greater than its predecessor and having in binary representation less zeros or more blocks of contiguous zeros.

0, 1, 2, 3, 4, 5, 7, 8, 9, 10, 11, 15, 16, 17, 18, 19, 20, 21, 23, 26, 27, 31, 32, 33, 34, 35, 36, 37, 39, 40, 41, 42, 43, 47, 50, 51, 52, 53, 55, 58, 59, 63, 64, 65, 66, 67, 68, 69, 71, 72, 73, 74, 75, 79, 80, 81, 82, 83, 84, 85, 87, 90, 91, 95, 98, 99, 100, 101, 103, 104, 105

Offset: 0

Reinhard Zumkeller, May 20 2005

nonn

A023416(a(n+1)) < A023416(a(n)) or A087116(a(n+1))>A087116(a(n));
complement of A107687; A107688(n) = a(n+1) - a(n);
A107684 is a subsequence.

Index entries for sequences related to binary expansion of n

Cf. A007088.

A108155 Numbers of the forms 2^n-2, 2^n-1, 2^n, 2^n+1 and 2^n+2.

Original entry on oeis.org

-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 14, 15, 16, 17, 18, 30, 31, 32, 33, 34, 62, 63, 64, 65, 66, 126, 127, 128, 129, 130, 254, 255, 256, 257, 258, 510, 511, 512, 513, 514, 1022, 1023, 1024, 1025, 1026, 2046, 2047, 2048, 2049, 2050, 4094, 4095, 4096, 4097, 4098, 8190, 8191, 8192, 8193, 8194, 16382, 16383, 16384

Offset: 1