64680

Appears in sequences

• Expansion of 1/((1+x)*(1-x)^5).at n=39A001752
• There are exactly n integer-sided triangles of area a(n).at n=30A051586
• Product of (sum of first n primes) and (product of first n primes).at n=4A054972
• Index values for new maxima in sequence A007365.at n=38A065932
• Numbers that can be expressed as the difference of the squares of primes in exactly eleven distinct ways.at n=10A092007
• a(n) = n^2*(n^2 - 1)/3.at n=21A112742
• Numbers with exactly 5 distinct prime divisors {2,3,5,7,11}.at n=22A147572
• A partition product of Stirling_2 type [parameter k = 3] with biggest-part statistic (triangle read by rows).at n=23A157403
• Number of (n+1)X(n+1) 0..4 arrays with every 2X2 subblock commuting with each of its horizontal and vertical 2X2 subblock neighbors.at n=3A186483
• T(n,k)=Number of (n+1)X(k+1) 0..4 arrays with every 2X2 subblock commuting with each of its horizontal and vertical 2X2 subblock neighbors.at n=24A186484
• Smallest number which is an unordered sum of two odd abundant numbers in exactly n ways.at n=23A187743
• T(n,m)=Number of (n+1)X5 0..m arrays with every 2X2 subblock commuting with each of its horizontal and vertical 2X2 subblock neighbors.at n=24A189174
• Numbers with prime factorization p*q*r*s^2*t^3 (where p, q, r, s, t are distinct primes).at n=11A190111
• Number of tangled bicolored graphs on n labeled vertices.at n=7A221493
• G.f.: A(x) = exp( Sum_{n>=1} 5^n * x^n/(n*(1+x^n)) ).at n=7A259275
• Sum of positive divisors of A000032(n).at n=23A272439
• Number of n-node labeled graphs with three endpoints.at n=6A277074
• Sum of odd divisors of Lucas(n).at n=22A280108
• a(n) = (3*n + 7)*Pochhammer(n, 5) / 4!.at n=7A293608
• Number of ordered set partitions of [n] where the maximal block size equals six.at n=4A320762