21303

Appears in sequences

• Number of bipartite partitions.at n=14A002765
• Numbers k such that the first 9 decimal digits of the k-th Fibonacci number is 1-9 pandigital.at n=10A112516
• Triangle read by rows: T(n,k) is the number of ternary words of length n on {0,1,2}, having k isolated 0's (n >= 0, k >= 0).at n=41A120924
• Number of ternary words on {0,1,2} having no isolated 0's.at n=11A120925
• Number of binary strings of length n with no substrings equal to 0001, 0100, or 1110.at n=19A164468
• Terms of A177763 which have more than one such representation.at n=19A177766
• Possible values k such that hyperelliptic curve s^2+k=m^5 has at least 6 finite points.at n=0A177857
• Number of 7X2 integer matrices with each row summing to zero, row elements in nondecreasing order, rows in lexicographically nondecreasing order, and the sum of squares of the elements <= 2*n^2 (number of collections of 7 zero-sum 2-vectors with total modulus squared not more than 2*n^2, ignoring vector and component permutations).at n=16A192707
• Expansion of e.g.f. 1/(1 - (exp(x) - 1)/(1 - (exp(x) - 1)^2/(1 - (exp(x) - 1)^3/(1 - ...)))), a continued fraction.at n=6A301921
• Expansion of 1/((1 - x)*(2 - theta_2(sqrt(x))/(2*x^(1/8)))), where theta_2() is the Jacobi theta function.at n=22A303668
• Expansion of (chi(x) / chi(-x^6))^2 in powers of x where chi() is a Ramanujan theta function.at n=50A328790