31130

Appears in sequences

• Denominators of continued fraction convergents to sqrt(790).at n=10A042523
• Constant term of the reduction of n-th Fibonacci polynomial by x^2 -> x+1. (See Comments.)at n=16A192232
• Dates after Jan 01 00 in chronological order which are palindromic when they are written in the format DD.MM.YY. The terms are listed as numbers (without the dots). Leading zeros of the terms are suppressed.at n=9A210888
• Dates after Jan 01 00 in chronological order which are palindromic when they are written according to the format MMDDYY (American standard, short). Leading zeros of the terms are suppressed.at n=10A210895
• Number of bits necessary to represent u(n) in binary, where u is the Lucas-Lehmer sequence: u(0) = 100 (in binary); for n>0, u(n) = u(n-1)^2 - 2.at n=14A227615
• Expansion of (f(-x^5) / f(-x))^2 in powers of x where f() is a Ramanujan theta function.at n=22A263002
• Row sums of A286781.at n=5A286794
• Numbers with decimal expansion d_1, ..., d_w such that for any k in 1..w there is some m in 1..w such that d_k = d_m = abs(k - m).at n=26A336880
• a(n) = Sum_{k=1..n} floor(n/(2*k-1))^3.at n=30A350144