35728

Appears in sequences

• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 54.at n=6A031732
• a(n) = Sum_{k=1..n} k*(prime(k) - k).at n=27A110477
• a(n) = 1331*n - 209.at n=26A157444
• a(n) = 49*n^2 + 7.at n=26A158481
• Number of defective 4-colorings of an n X 4 0..3 array connected horizontally, vertically, diagonally and antidiagonally with exactly one mistake, and colors introduced in row-major 0..3 order.at n=10A229574
• Numbers k such that sigma(k) = sigma(k - d(k)).at n=35A277273
• Triangle T(n,k) read by rows: coefficients of polynomials P_n(t) defined in Formula section.at n=25A278463
• a(n) = Sum_{d|n} min(d, n/d)^5.at n=55A297795
• a(n) = 140*2^n - 112.at n=8A305270
• Number of 8-element subsets of [n] whose sum is a triangular number.at n=15A320854
• G.f. A(x) satisfies A(x) = 1 + x^3*(1+x)^2*A(x)^3.at n=18A366591