300125

Appears in sequences

• Numbers of the form 5^i*7^j with i, j >= 0.at n=32A003595
• Number of spanning trees in K_5 x P_n.at n=1A003751
• a(n) = n^(n-2)*(n+2)^(n-1).at n=4A006236
• Minimal discriminant of totally real number field of degree n.at n=5A006554
• Discriminants of totally real sextic fields.at n=0A023686
• Numbers whose prime factors are 5 and 7.at n=18A033851
• Primal codes of finite idempotent functions on positive integers.at n=13A109298
• Number of functions f:[n]->[n] such that f[(2*x) mod n]=[2*f(x)] mod n for all x in [n], for n=1,2,3,... Here [n] denotes {0,1,2,...,n-1}.at n=34A117987
• a(1)=27; if n = Product p_i^e_i, n>1, then a(n) = Product p_{i+2}^{e_i+2}.at n=17A126272
• Complete list of discriminants of definite Eichler orders with class number 2.at n=45A143748
• Products of the 4th power of a prime and a distinct prime of power 3 (p^4*q^3).at n=20A179666
• a(n) = 7*n^3.at n=35A244727
• Self-inverse permutation of nonnegative integers, A075158-conjugate of blue code: a(n) = 1 + A075157(A193231(A075158(n-1))).at n=45A245454
• Numbers n such that n^3 = a^2 + b^2 and a^3 + b^3 is a square, for some positive integers a and b.at n=30A257965
• a(n) = A059895(A260443(n), A260443(1+n)).at n=77A284578
• Largest proper divisor of A324886(n).at n=35A324896
• Inverse permutation to A328618.at n=34A328619
• Twisted variant of A276086 indexed by A328625.at n=48A328624
• Irregular triangle read by rows: For n >= 1, 0 <= k <= floor(n/2), T(n,k) is the minimal discriminant (in absolute value) of the number fields with signature r_1 = n - 2*k, r_2 = k.at n=11A343290
• a(n) = A276086(A328623(n)).at n=36A346233