75949

Appears in sequences

• a(n) = Sum_{k <= n/2 } binomial(n-2k, 3k+1).at n=23A137357
• a(n) = 62*n^2 - 1.at n=34A158680
• Numbers k with maximal exponent in prime factorization equal to 1, such that k+1 has maximal exponent 2, k+2 has maximal exponent 3, and k+3 has maximal exponent 4.at n=16A176913
• Number of compositions of 5*n-4 into parts 3 and 5.at n=14A369848
• Numbers k such that 2^k - 25 is prime.at n=26A379020
• a(n) = Sum_{k=0..floor(2*n/3)} binomial(2*k+1,2*n-3*k).at n=17A392454