39980

Appears in sequences

• Fibonacci sequence beginning 4, 13.at n=18A022132
• a(n) = 100*n^2 - n.at n=19A157659
• a(n) = 400*n^2 - 2*n.at n=9A158316
• a(n) = 400*n^2 - 20.at n=9A158597
• a(n) = 4*(10^n-5).at n=3A177109
• Number of integers m in base n with distinct digits such that the number formed by the consecutive subsequence of the initial j digits is divisible by j for all j in {1,...,length(m)}.at n=15A334319