137859

Appears in sequences

• Number of primes <=10^n in which decimal digits are all distinct.at n=7A098224
• Number of triangular nXnXn arrays colored with integers 0 upwards introduced in row major order, with no element equal to any neighbor, and containing the value n(n+1)/2-3.at n=7A211900
• T(n,k)=Number of triangular nXnXn arrays colored with integers 0 upwards introduced in row major order, with no element equal to any neighbor, and containing the value n(n+1)/2-k-1.at n=43A211904