25780

Appears in sequences

• Number of partitions in parts not of the form 17k, 17k+3 or 17k-3. Also number of partitions with at most 2 parts of size 1 and differences between parts at distance 7 are greater than 1.at n=43A035964
• Numbers n such that n through n+5 have the same number of distinct prime factors.at n=30A045934
• Numbers n such that 239*2^n-1 is prime.at n=2A050878
• Triangle T(n, k) = T(n-1, k) + T(n, k-1) + T(n-1, k-1) + T(n-2, k-1), with T(n, 1) = T(n, n) = 1, read by rows.at n=43A144447
• Numbers k such that 6*prime(k) -+ {1,5} are all prime.at n=36A174393
• Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 2,3,3,1,1,0,1 for x=0,1,2,3,4,5,6.at n=5A198160
• Number of n X 2 0,1 arrays indicating 2 X 2 subblocks of some larger (n+1) X 3 binary array having two adjacent 1's and two adjacent 0's, with rows and columns of the latter in lexicographically nondecreasing order.at n=11A227329
• Number of distinct cardinalities of orbits of lattice points under the automorphism group of the n-dimensional integer lattice.at n=41A270950
• Number of n X 4 0..1 arrays with every element equal to 0, 3, 4, 5 or 8 king-move adjacent elements, with upper left element zero.at n=11A298778
• Number of binary strings of length n which have more 00 than 01 substrings.at n=16A371358