A376692 Numbers with the most significant digit odd and alternating parity of digits.

1, 3, 5, 7, 9, 10, 12, 14, 16, 18, 30, 32, 34, 36, 38, 50, 52, 54, 56, 58, 70, 72, 74, 76, 78, 90, 92, 94, 96, 98, 101, 103, 105, 107, 109, 121, 123, 125, 127, 129, 141, 143, 145, 147, 149, 161, 163, 165, 167, 169, 181, 183, 185, 187, 189, 301, 303, 305, 307, 309

Offset: 1

Author

Andrew Howroyd, Oct 01 2024

Keywords

• nonn
• base

Links

• Andrew Howroyd, Table of n, a(n) for n = 1..10000

Crossrefs

Complement of A062285 within A030141.

Cf. A030142, A030143, A080466.

Programs

PARI

isok(n)=my(d=digits(n)); for(i=1, #d, if((d[i]-i)%2, return(0))); 1