35581

Appears in sequences

• Number of partitions of n into parts of 3 kinds.at n=15A000716
• Numbers n such that the middle coefficient of the cyclotomic polynomial Phi_n(x) has a value not obtained for any smaller n.at n=19A095877
• Rhonda numbers to base 10.at n=17A099542
• Integers k such that the k-th triangular number t_k has all its base-12 digits contained in {1,5,7,11}.at n=12A118711
• Primitive (squarefree) elements of A199745.at n=27A200145
• Numbers k that form a primitive Pythagorean triple with k' and sqrt(k^2 + k'^2), where k' is the arithmetic derivative of k.at n=15A210503
• Numbers n such that the sum of the distinct prime divisors of n that are congruent to 1 mod 4 equals the sum of the distinct prime divisors congruent to 3 mod 4.at n=19A215949
• The least k such that the polynomial cyclotomic(k,x) has n different coefficients.at n=34A231611
• Expansion of (1+4*x+x^2)/((1+x)^2*(1-x)^5).at n=25A233329
• Denominator of new minima of phi(p-1)/(p-1), where phi is Euler's totient function and p = prime(n).at n=14A241198
• Irregular triangle read by row: T(n,k), n>=1, k>=1, in which column k lists the numbers of A000716 multiplied by A000330(k), and the first element of column k is in row A000217(k).at n=45A252117
• Expansion of Product_{k>=1} 1/(1 - x^(2*k) + x^(3*k)).at n=38A276526
• Number of (unlabeled) rooted trees with n leaf nodes and without unary nodes such that the maximum of the node outdegrees equals seven.at n=9A292233
• Squarefree products of k primes that are symmetrically distributed around their average. Case k = 4.at n=17A294751
• Number of nX3 0..1 arrays with every element unequal to 1, 2, 3, 5 or 6 king-move adjacent elements, with upper left element zero.at n=7A304692
• T(n,k)=Number of nXk 0..1 arrays with every element unequal to 1, 2, 3, 5 or 6 king-move adjacent elements, with upper left element zero.at n=47A304697
• T(n,k)=Number of nXk 0..1 arrays with every element unequal to 1, 2, 3, 5 or 6 king-move adjacent elements, with upper left element zero.at n=52A304697
• Numbers such that the product of their digits is equal to 10 times the sum of their prime factors, without multiplicity.at n=12A306313
• Sum of the sixth largest parts in the partitions of n into 8 parts.at n=50A308992
• First occurrence of n in A345079, or -1 if n does not occur in A345079.at n=34A345080