22635

Appears in sequences

• Class numbers associated with terms of A001988.at n=28A001989
• Class numbers associated with terms of A001988.at n=29A001989
• Sum of n-th row of triangle in A079784.at n=8A079783
• G.f.: (1+x^3+x^4+x^5+x^6+x^9)/((1-x)*(1-x^2)^2*(1-x^3)*(1-x^4)).at n=44A090491
• Numbers n with property that n^2 contains "1234" as a substring.at n=12A175464
• Triangular array T(n,k), read by rows: coefficients of strong divisibility sequence of polynomials p(1,x) = 1, p(2,x) = 3 + 3*x, p(n,x) = u*p(n-1,x) + v*p(n-2,x) for n >= 3, where u = p(2,x), v = 1 - 2*x - x^2.at n=33A367301