30316

Appears in sequences

• Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite AEI = AlPO4-18 [Al24P24O96] starting with a T3 atom.at n=6A018943
• Maximal value of Sum_{i=1..n} (p(i) - p(i+1))^2, where p(n+1) = p(1), as p ranges over all permutations of {1, 2, ..., n}.at n=44A064842
• a(n) = n*(n^2+3*n-1)/3.at n=44A084990
• Numbers k such that k^2 divides 21^k-1.at n=39A128401
• Expansion of (1-x-sqrt(1-6*x-7*x^2))/(2*(1+2*x)).at n=7A129148
• Eigentriangle of A085478: T(n,k) = A085478(n,k) * A125273(k).at n=41A144250
• Numbers k such that prime(k) * 2^k + 1 is prime.at n=19A239742
• a(n) = A273059(4n+3).at n=30A275919
• Number of nX6 0..1 arrays with every element equal to 0, 2, 3 or 6 king-move adjacent elements, with upper left element zero.at n=12A297984