31673
domain: N
Appears in sequences
- Partial sums of A001935; at one time this was conjectured to agree with A007478.at n=39A014605
- Column 6 of triangle A091602.at n=47A091609
- 47-gonal numbers.at n=37A095311
- Number of partitions of 2n in which each odd part has even multiplicity and each even part has odd multiplicity.at n=29A100847
- Number of 4X2 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 4 zero-sum 2-vectors with total modulus squared not more than 2*n^2, ignoring vector and component permutations).at n=36A192703