A039372 Numbers whose base-9 representation has the same nonzero number of 2's and 3's.

21, 29, 102, 110, 165, 174, 189, 190, 193, 194, 195, 196, 197, 201, 210, 219, 228, 237, 245, 254, 261, 262, 265, 266, 267, 268, 269, 281, 290, 299, 308, 317, 345, 353, 426, 434, 507, 515, 588, 596, 669, 677, 750, 758, 831, 839, 894, 903, 918, 919, 922, 923

Offset

1,1

Links

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

Mathematica

Select[Range[1000], DigitCount[#, 9, 2]==DigitCount[#, 9, 3]>0&] (* Harvey P. Dale, Sep 24 2015 *)

Prog

(MATLAB) x = 0:923; d = dec2base(x, 9)-'0'; s1 = sum(d==2, 2); s2 = sum(d==3, 2); a = x(s1==s2 & s1>0); disp(regexprep(num2str(a), ' +', ', ')) % Chris R. Rehmann, Apr 06 2026

Crossrefs

Cf. A007095, A039091.

Cf. A039373, A039374, A039375, A039376, A039377.

Cf. A039359, A039366.

Sequence in context: A211253 A209975 A077787 * A043195 A043975 A215965

Adjacent sequences: A039369 A039370 A039371 * A039373 A039374 A039375

Keyword

nonn,base,easy

Author

Olivier Gérard

Status

approved