285714
domain: N
Appears in sequences
- Numbers k such that k and 2*k are anagrams.at n=7A023086
- The periodic part of the decimal expansion of 1/n. Any initial 0's are to be placed at end of cycle.at n=34A036275
- Periodic part of decimal expansion of 1/n (leading 0's omitted).at n=34A060284
- Multiples of 142857.at n=1A101202
- 3-transposable numbers.at n=1A144504
- a(n) is the number of convex pentagons in an n-triangular net.at n=23A176646
- The periodic part of the decimal expansion of n/(n+1). Any initial 0's are to be placed at end of cycle.at n=12A212720
- Numbers x whose digits can be permuted to produce more than a single multiple of x.at n=4A245682
- a(n) = floor(10^k/n) where k is the smallest integer such that the whole first period or the whole terminating fractional part of the decimal expansion of 1/n is shifted to appear before the decimal point in 10^k/n.at n=34A266385
- Terms in A323711 such that deleting any existing 9 or 0 digit in decimal notation does not result in a term of A323711.at n=1A306265
- Numbers k such that k, 2*k, and 3*k are anagrams of each other.at n=1A323711
- a(n) = floor(((n mod 6)+1) * 10^floor((n/6)+1) / 7).at n=31A343915
- a(n) is the least positive number that can be written in exactly n ways as 3*x*y^2 - x^3 where x and y are positive integers.at n=5A364974
- Array read by ascending antidiagonals: A(n,m) is obtained by concatenating the digits of floor(n/m) with those of its fractional part up to the digits of the first period, where the leading and trailing 0's are omitted.at n=34A382068
- Irregular table, read by rows, where row z = 2, 3, 4, ... lists pairs (y, x) such that x + y/z = concat(y, x)/z with 0 < y < z, gcd(y, z) = 1, and primitive x, cf. comments.at n=61A383188