21536

Appears in sequences

• Convolution of A001950 with itself.at n=25A023667
• Numbers k such that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 73.at n=32A031571
• Row sums of triangle A129503.at n=37A129504
• Number of 11X2 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 11 zero-sum 2-vectors with total modulus squared not more than 2*n^2, ignoring vector and component permutations).at n=12A192712
• Number of partitions of n such that (number parts having multiplicity 1) is a part and (number of parts > 1) is a part.at n=48A241511
• Number of partitions p = [x(1), ..., x(k)], where x(1) >= x(2) >= ... >= x(k), of n such that min(x(i) - x(i-1)) < number of distinct parts of p.at n=37A241823