50203

Appears in sequences

• Numerators of continued fraction convergents to sqrt(639).at n=8A042226
• Any two consecutive digits in the sequence sum up to a prime.at n=43A158652
• Expansion of 1/2 * Product_{i>=0, j>=0, k>=0} (1 + x^(i^2 + j^2 + k^2)).at n=24A321381
• Array read by antidiagonals: T(m,n) is the number of induced cycles in the grid graph P_m X P_n.at n=59A360196
• Array read by antidiagonals: T(m,n) is the number of induced cycles in the grid graph P_m X P_n.at n=61A360196
• a(n) = number of primes < n^4.at n=28A380331