A204140 Numbers m such that both m and 7m are zeroless pandigital numbers (A050289).

123456789, 123678459, 123875649, 124563789, 124789563, 127593468, 127638945, 127648953, 132487695, 132596478, 134526789, 135246879, 135926748, 135947826, 136245978, 136597482, 136758924, 136875249, 137645982, 137689245, 137826459, 138752649, 138795462, 138976452

Offset

1,1

Comments

There are precisely 24 such numbers.

The only number m such that m and 8m are zeroless pandigital numbers is A050289(1)=123456789.

Links

Table of n, a(n) for n=1..24.

Formula

a(n) = A204141(n)/7.

Crossrefs

Cf. A050289, A204141.

Sequence in context: A277057 A180408 A050289 * A288941 A175547 A053654

Adjacent sequences: A204137 A204138 A204139 * A204141 A204142 A204143

Keyword

nonn,base,fini,full

Author

Zak Seidov, Jan 11 2012

Status

approved