129119

Properties

Appears in sequences

• Numbers k such that k^2 contains only digits {1,6,7}.at n=9A053906
• Number of n-bit base-2 deletable primes.at n=23A096235
• Numbers k such that k and k^2 use only the digits 1, 2, 6, 7 and 9.at n=20A137015
• a(n) is the number of binary strings of length n that have no common ones with some of their cyclic shifts.at n=21A374712
• Prime numbersat n=12087