A039364 Numbers whose base-9 representation has the same nonzero number of 0's and 8's.

72, 89, 153, 170, 234, 251, 315, 332, 396, 413, 477, 494, 558, 575, 639, 649, 650, 651, 652, 653, 654, 655, 657, 666, 675, 684, 693, 702, 711, 746, 755, 764, 773, 782, 791, 800, 802, 803, 804, 805, 806, 807, 808, 818, 882, 899, 963, 980, 1044, 1061, 1125, 1142

Offset

1,1

Links

Chris R. Rehmann, Table of n, a(n) for n = 1..10000

Mathematica

Select[Range[1200], DigitCount[#, 9, 0]==DigitCount[#, 9, 8]>0&] (* Harvey P. Dale, Sep 20 2023 *)

Prog

(MATLAB)
a = NaN(52, 1); k = 0; j = 1;
while any(isnan(a))
    d = dec2base(k, 9)-'0';
    n1 = sum(d==0); n2 = sum(d==8);
    if n1==n2 && n1 > 0
        a(j) = k; j = j+1;
    end
    k = k+1;
end
disp(regexprep(num2str(a'), ' +', ', ')) % Chris R. Rehmann, Apr 04 2026

Crossrefs

Cf. A007095, A031492.

Cf. A039357, A039358, A039359, A039360, A039361, A039362, A039363.

Cf. A039371, A039377, A039382, A039386, A039389, A039391, A039392.

Sequence in context: A065147 A214226 A043187 * A043967 A248970 A392163

Adjacent sequences: A039361 A039362 A039363 * A039365 A039366 A039367

Keyword

nonn,base,easy

Author

Olivier Gérard

Status

approved