27895

Appears in sequences

• Convolution of natural numbers with (1, p(1), p(2), ... ), where p(k) is the k-th prime.at n=36A023538
• Numbers n such that 55*2^n-1 is prime.at n=39A050553
• a(n) = n*(94 + 5*n + 25*n^2 - 5*n^3 + n^4)/120.at n=21A057703
• Number of ways to cover (without overlapping) a ring lattice (necklace) of n sites with molecules that are 7 sites wide.at n=44A058366
• Number of (n+1) X 2 0..2 arrays with every 2 X 3 or 3 X 2 subblock having no more than two equal edges, and new values 0..2 introduced in row major order.at n=4A206614
• Number of (n+1) X 6 0..2 arrays with every 2 X 3 or 3 X 2 subblock having no more than two equal edges, and new values 0..2 introduced in row major order.at n=0A206618
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X3 or 3X2 subblock having no more than two equal edges, and new values 0..2 introduced in row major order.at n=10A206621
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X3 or 3X2 subblock having no more than two equal edges, and new values 0..2 introduced in row major order.at n=14A206621
• Main diagonal of Unlucky array: a(n) = A255543(n,n).at n=29A255549
• Records of A288814.at n=22A300098