A039414 Numbers whose base-10 representation has the same nonzero number of 2's and 7's.

27, 72, 127, 172, 207, 217, 237, 247, 257, 267, 270, 271, 273, 274, 275, 276, 278, 279, 287, 297, 327, 372, 427, 472, 527, 572, 627, 672, 702, 712, 720, 721, 723, 724, 725, 726, 728, 729, 732, 742, 752, 762, 782, 792, 827, 872, 927, 972, 1027, 1072

Offset

1,1

Links

Table of n, a(n) for n=1..50.

Crossrefs

Sequence in context: A219130 A116302 A181976 * A043237 A044017 A147651

Adjacent sequences: A039411 A039412 A039413 * A039415 A039416 A039417

Keyword

nonn,base,easy

Author

Olivier Gérard

Status

approved