193600

Appears in sequences

• Weight distribution of [100,22,22] code associated with Hoffman-Singleton and Higman-Sims graphs.at n=21A015068
• Weight distribution of [100,22,22] code associated with Hoffman-Singleton and Higman-Sims graphs.at n=29A015068
• a(n) = 6^n/8 - 4^(n-1) + 2^(n-3).at n=8A016283
• a(n) = (12*n + 8)^2.at n=36A017618
• Composite numbers divisible by the palindromic sum of their palindromic prime factors (counted with multiplicity).at n=35A046366
• Squares in which removing a suitably chosen digit yields another square and this process can be continued until the digits are exhausted.at n=33A062387
• Stirling2 triangle with scaled diagonals (powers of 2).at n=38A075497
• Smallest k such that tau(k) - tau(k-1) = n, where tau(k) = number of divisors of k, or 0 if no such number exists.at n=45A086550
• a(n) = ( n*(n+2) )^2.at n=20A099761
• Squares of the form p1 - 1 where p1 is a lower twin prime.at n=17A145823
• Squares which are the sum of two or more consecutive squares.at n=19A151557
• Squares such that square+-3=primes.at n=19A153262
• a(n) = ((n-1)^2*n^2*(n+1)^2)/6 - 2*Sum_{l=2..n}Sum_{k=2..n}(n-k+1)*(n-l+1)*(k-1)*(l-1).at n=11A169801
• a(n) = denominator of ((Zeta(0,2,2/3) - Zeta(0,2,n+2/3))/9), where Zeta is the Hurwitz Zeta function.at n=4A173987
• Numbers with prime factorization p^2*q^2*r^6 where p, q, and r are distinct primes.at n=8A190469
• Perfect squares which can be written in all the four forms a^2+b^2, a^2+2*b^2, a^2+3*b^2 and a^2+7*b^2, with a > 0 and b > 0.at n=45A216682
• Number of (2+2) X (n+2) 0..3 arrays with every 3 X 3 subblock row and diagonal sum equal to 0 2 3 6 or 7 and every 3 X 3 column and antidiagonal sum not equal to 0 2 3 6 or 7.at n=17A252534
• The number of Lyndon words of size n from an alphabet of 5 letters and 1st and 2nd letter of the alphabet with equal frequency in the words.at n=10A349001
• a(n) is the least number with exactly n divisors of the form 3*k+2.at n=31A364583
• Triangle read by rows, with T(n,k) giving the number of n X n Boolean matrices with exactly k ones having at least one zero row and at least one zero column.at n=44A392483