19528

Appears in sequences

• Expansion of (1-x^2-x^3)/(1-2*x-5*x^2-4*x^3-x^4).at n=8A011367
• Erroneous version of A269484.at n=8A014277
• Number of lines through exactly 2 points of an n X n grid of points.at n=18A018809
• Number of numbers below 10^n with nonzero multiplicative digital root 9.at n=5A051829
• G.f. A(x) defined by: A(x)^3 consists entirely of integer coefficients between 1 and 3 (A083953); A(x) is the unique power series solution with A(0)=1.at n=25A084203
• Triangular array read by rows: for n, k >= 1, a(n+1, 1) = 2*a(n, n); a(n+1, k+1) = a(n, k)+a(n+1, k).at n=30A129340
• Number of trees on n nodes with 2 forbidden limbs of sizes 7 and 8.at n=8A269484
• Numbers k such that 6*10^k + 37 is prime.at n=24A281903
• Lexicographically earliest sequence of distinct positive integers such that for any n > 0, a(n) and a(n+1) are congruent modulo the n-th prime number, and the least value not yet in the sequence appears as soon as possible.at n=45A367290