39016

Appears in sequences

• Numbers n such that 77*2^n-1 is prime.at n=22A050564
• Triangle, read by rows, where the n-th row lists the coefficients of the polynomial of degree n that generates the n-th diagonal of this sequence.at n=58A091150
• Third column of triangle A091150, in which the n-th row lists the coefficients of the polynomial of degree n that generates the n-th diagonal.at n=7A091153
• Number of ordered triples (w,x,y) with all terms in {-n,...-1,1,...,n} and 2w^2>x^2+y^2.at n=22A211632
• Number of n X 2 0,1 arrays indicating 2 X 2 subblocks of some larger (n+1) X 3 binary array having nonzero determinant, with rows and columns of the latter in lexicographically nondecreasing order.at n=16A227554
• Smallest b such that the k consecutive primes starting with prime(n) are all base-b Wieferich primes, i.e., satisfy b^(p-1) == 1 (mod p^2). Square array A(n, k), read by antidiagonals downwards.at n=41A286816
• Number of 3-abelian equivalence classes of words of length n over a binary alphabet.at n=30A289657
• Number of nX5 0..1 arrays with every element unequal to 1, 2, 3, 6 or 7 king-move adjacent elements, with upper left element zero.at n=6A305086
• Number of nX7 0..1 arrays with every element unequal to 1, 2, 3, 6 or 7 king-move adjacent elements, with upper left element zero.at n=4A305088
• T(n,k)=Number of nXk 0..1 arrays with every element unequal to 1, 2, 3, 6 or 7 king-move adjacent elements, with upper left element zero.at n=59A305089
• A(n, k) is the k-th number b > 1 such that b^(prime(n+i)-1) == 1 (mod prime(n+i)^2) for each i = 0..3, with k running over the positive integers; square array, read by antidiagonals, downwards.at n=20A319061
• Numbers k such that w(k-2), w(k-1), and w(k) are all odd, where w is A336957.at n=14A338070
• a(n) is the smallest b > 1 such that prime(n), prime(n+1), prime(n+2) and prime(n+3) are all base-b Wieferich primes.at n=5A344828