A039385 Numbers whose base-9 representation has the same nonzero number of 4's and 7's.

43, 67, 124, 148, 205, 229, 286, 310, 331, 340, 349, 358, 376, 385, 387, 388, 389, 390, 392, 393, 395, 403, 448, 472, 529, 553, 571, 580, 589, 598, 603, 604, 605, 606, 608, 609, 611, 616, 625, 643, 691, 715, 772, 796, 853, 877, 934, 958, 1015, 1039

Offset

1,1

Links

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

Crossrefs

Cf. A007095.

Sequence in context: A273773 A139917 A146334 * A043208 A043988 A139499

Adjacent sequences: A039382 A039383 A039384 * A039386 A039387 A039388

Keyword

nonn,base,easy

Author

Olivier Gérard

Status

approved