A340376 Numbers k such that there are no 1-digits in the ternary expansion of A048673(k).

2, 6, 7, 15, 22, 26, 43, 50, 54, 62, 65, 74, 77, 87, 94, 98, 103, 138, 183, 190, 198, 214, 218, 221, 235, 278, 302, 343, 353, 406, 421, 426, 430, 439, 463, 465, 467, 475, 498, 506, 534, 574, 578, 610, 633, 646, 662, 666, 682, 734, 799, 843, 862, 869, 870, 882, 886, 910, 949, 967, 977, 987, 1013, 1014, 1087, 1121

Offset: 1

Author

Antti Karttunen, Jan 15 2021

Keywords

• nonn

Links

• Antti Karttunen, Table of n, a(n) for n = 1..20000
• Index entries for sequences computed from indices in prime factorization

Crossrefs

Positions of zeros in A304759 and in A340378. Positions of 2's in A340381.

Cf. A048673, A340377.

Programs

PARI

isA340376(n) = (0==A304759(n));