200768

Appears in sequences

• Number of sum-free subsets of {1, ..., n}.at n=28A007865
• A Lucas-Binet triangle read by rows: t(n,m)=((( 1 + Sqrt[Prime[n]]))^m + (( 1 - Sqrt[Prime[n]]))^m)/2.at n=51A140895
• a(n) = 196*n^2 + 2*n.at n=31A158222
• a(n) is the number of nonnegative integers that can be represented by lighting only n segments on a 9-segment display, used by the Russian postal service.at n=26A350177