A352547 Numbers having more odd than even digits when written in base 10.

1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 31, 33, 35, 37, 39, 51, 53, 55, 57, 59, 71, 73, 75, 77, 79, 91, 93, 95, 97, 99, 101, 103, 105, 107, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 121, 123, 125, 127, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 141, 143, 145, 147, 149, 150, 151, 152, 153, 154, 155

Offset

1,2

Links

Table of n, a(n) for n=1..71.

Prog

(PARI) select( {is_A352547(n)=vecsum(n=digits(n)%2)*2>#n}, [0..155])
(Python)
def ok(n): return len(s:=str(n)) > 2*sum(1 for c in s if c in "02468")
print([k for k in range(156) if ok(k)]) # Michael S. Branicky, Jul 03 2022

Crossrefs

Cf. A196563, A196564.

Cf. A072600 (same in base 2).

Cf. A227870, A352546 (numbers with fewer odd than even decimal digits).

Sequence in context: A356845 A225105 A143451 * A014261 A066640 A137507

Adjacent sequences: A352544 A352545 A352546 * A352548 A352549 A352550

Keyword

nonn,base

Author

M. F. Hasler, Jul 03 2022

Status

approved