111151

Appears in sequences

• Strong pseudoprimes to base 18.at n=35A020244
• Triangle of Gaussian binomial coefficients [ n,k ] for q = 18.at n=16A022182
• Triangle of Gaussian binomial coefficients [ n,k ] for q = 18.at n=19A022182
• a(n) = n^4 + n^3 + n^2 + n + 1.at n=18A053699
• a(0)=0, a(1)=1, a(2n)=18*a(n), a(2n+1)=a(2n)+1.at n=31A197352
• Numbers with digital product = 5.at n=16A199985
• Composite numbers whose product of digits is 5.at n=12A201054
• a(n) = (18^n-1)/17.at n=5A218721
• a(n) = 1 + sigma(n) + sigma(n)^2 + sigma(n)^3 + sigma(n)^4.at n=9A258978
• a(n) = 1 + sigma(n) + sigma(n)^2 + sigma(n)^3 + sigma(n)^4.at n=16A258978
• Lexicographically earliest sequence of distinct terms such that a(n) is divisible by five and only five digits of a(n+1).at n=42A308609