251720

Appears in sequences

• Expansion of g.f. x*(1 + x)*(1 + 6*x + x^2)/(1 - x)^7.at n=14A006858
• Numbers n such that n+1 divides prime(n)+1.at n=14A061437
• Numbers k such that prime(k) == 13 (mod k).at n=18A116658
• a(n) = n*(n+1)*(n+2)*(n+3)/3.at n=28A162668
• Triangle of Generalized Runyon numbers R_{n,k}^(4) read by rows.at n=32A173621
• Number of n X n array permutations with each element making a single king move.at n=3A189178
• Number of nX4 array permutations with each element making a single king move.at n=3A189181
• T(n,k) = Number of n X k array permutations with each element making a single king move.at n=24A189186