305900

Appears in sequences

• Expansion of (1-4*x)^(7/2).at n=17A002423
• a(n) is the smallest entry of the n-th column of the matrix of Super Catalan numbers S(m,n).at n=13A173781
• Numbers k whose sum of divisors equals the sum of divisors of 2*k-1.at n=23A289738