A044836 Positive integers having more base-10 runs of even length than odd.

11, 22, 33, 44, 55, 66, 77, 88, 99, 1100, 1111, 1122, 1133, 1144, 1155, 1166, 1177, 1188, 1199, 2200, 2211, 2222, 2233, 2244, 2255, 2266, 2277, 2288, 2299, 3300, 3311, 3322, 3333, 3344, 3355, 3366, 3377, 3388, 3399, 4400

Offset

1,1

Links

Rémy Sigrist, Table of n, a(n) for n = 1..10000

Prog

(PARI) is(n, base=10) = { my (v=0); while (n, my (d=n%base, w=0); while (n%base==d, n\=base; w++); v+=(-1)^w); v>0 } \\ Rémy Sigrist, Nov 07 2020

Crossrefs

Number of even/odd runs: A044941, A044950. Cf. A044851 (no fewer), A044866 (same number).

Cf. A044828 (binary analog), A338754.

Sequence in context: A052191 A321536 A110732 * A338754 A033008 A082275

Adjacent sequences: A044833 A044834 A044835 * A044837 A044838 A044839

Keyword

nonn,base

Author

Clark Kimberling

Extensions

Incorrect formula removed by Rémy Sigrist, Nov 07 2020

Status

approved