37908

Appears in sequences

• Expansion of 1/(1-x^4-x^5-x^6-x^7-x^8-x^9-x^10-x^11-x^12-x^13-x^14).at n=39A017836
• Number of possible rook moves on an n X n chessboard.at n=26A035006
• Triangular matrix arising in enumeration of catafusenes, read by rows.at n=52A038763
• a(n) = a(1) + a(2) + ... + a(n-1) + a(m) for n >= 4, where m = 2^(p+1) + 2 - n and p is the unique integer such that 2^p < n - 1 <= 2^(p+1), starting with a(1) = 1, a(2) = 3, and a(3) = 1.at n=15A049965
• Numbers k such that phi(k) and cototient(k) are squares but k is not in A054755.at n=19A054756
• T(n,n-5), where T is the array in A055830.at n=25A055832
• Triangle of generalized Chebyshev coefficients.at n=37A080419
• a(n) = (n+1)*(n+6)*3^n/6.at n=7A080420
• Column 4 of triangle A091602.at n=48A091607
• a(n) = A081038(n) + A077616(n).at n=6A094951
• Primal codes of finite permutations on positive integers.at n=42A109297
• Triangle whose rows are generated by A136157^n * [1, 1, 0, 0, 0, ...].at n=47A136158
• A Chebyshev polynomial triangle of the first kind defined by T(n+1,x) = 3x*T(n,x) - T(n-1,x).at n=38A136159
• Fibonacci matrix read by antidiagonals. (Inverse of A136158.)at n=47A164948
• Numbers with 42 divisors.at n=34A175750
• Numbers of the form p^6*q^2*r where p, q, and r are distinct primes.at n=32A179703
• Numbers n = p * q, where n, p, and q together contain all 10 digits at least once.at n=49A253172
• Numbers with prime factorization Product_{k=1..w} prime(i_k) ^ e_k (where w = A001221(n) and prime(i) denotes the i-th prime number) such that i_k <> e_k for k = 1..w and { i_1, ..., i_w } = { e_1, ..., e_w }.at n=22A320252
• T(n,k) = k^n + k^(n - 2)*n*(n - 1)*(k*(k - 1) + 1)/2 for 0 < k <= n and T(n,0) = A154272(n+1), square array read by antidiagonals upwards.at n=58A320530
• a(n) is the smallest nonnegative integer m such that the integer part of tan(m) is equal to n.at n=36A327788