31854676
domain: N
Appears in sequences
- Number of increasing sequences of Goldbach type with maximal element n.at n=28A008929
- Number of subsets S of T={0,1,2,...,n} such that each element of T is the sum of two (not necessarily distinct) elements of S.at n=27A066062
- The number of symmetric numerical sets with odd Frobenius number and no small atoms.at n=27A164047