20977

Appears in sequences

• Convolution of natural numbers with Beatty sequence for the golden mean A000201.at n=41A023541
• Sum of antidiagonals of A060736.at n=33A061349
• a(n) = (2*n - 1)*(7*n^2 - 7*n + 3)/3.at n=16A063494
• Number of (w,x,y) with all terms in {0,...,n} and w>=range{w,x,y}.at n=32A212968
• Number of partitions of n having population standard deviation < 2.at n=48A238658
• T(n,k)=Number of (n+2)X(k+2) 0..4 arrays with every consecutive three elements in every row and diagonal having exactly two distinct values, and in every column and antidiagonal not having exactly two distinct values, and new values 0 upwards introduced in row major order.at n=28A252961
• Number of (1+2)X(n+2) 0..4 arrays with every consecutive three elements in every row and diagonal having exactly two distinct values, and in every column and antidiagonal not having exactly two distinct values, and new values 0 upwards introduced in row major order.at n=7A252962
• Numbers missing from A001033 despite satisfying the necessary congruence conditions (see comments).at n=34A274470