20934

Appears in sequences

• Number of series-reduced planted trees with n+9 nodes and 4 internal nodes.at n=35A001860
• "BGK" (reversible, element, unlabeled) transform of 1,1,1,1,...at n=30A032058
• Sin(n) decreases monotonically to -1.at n=34A046964
• Numbers k such that k^12 == 1 (mod 13^4).at n=7A056095
• Interprimes which are of the form s*prime, s=18.at n=36A075293
• a(0)=1; a(n) is the smallest integer > a(n-1) such that sin(a(n)) is closer to an integer (here 0 or -1) than sin(a(n-1)).at n=33A079037
• Values of z in solutions (x,y,z) to the Diophantine equation x^3-x^2+y^3-y^2=z^3-z^2, with 1<x<y<z arranged in order of increasing x.at n=20A138669
• a(1) = 1, and for each n >=2, a(n) is the smallest number such that 1/cos(a(n)) < 1/cos(k) for all k < n, so that 1/cos(a(1)) > 1/cos(a(2)) > ... > 1/cos(a(n)) > ...at n=33A172448
• Number of partitions of n having no parts with multiplicity 10.at n=37A184645
• Number of 2Xn 0..1 arrays with row sums equal and column sums unequal to adjacent columns.at n=11A202743
• Number of conjugacy classes in adjoint twisted Chevalley group 2E6(q) as q runs through the prime powers.at n=3A225935
• Numbers n such that the decimal equivalent of the binary reflected Gray code representation of n is a palindromic prime.at n=38A281382
• Row sums of the triangular array A357431.at n=43A357417
• Number of 3 X 3 matrices with unit determinant and nonnegative integer entries whose sum is n.at n=20A361083