122706

Appears in sequences

• a(n) = 1^2 + prime(1)^2 + prime(2)^2 + ... + prime(n)^2.at n=30A024525
• Number of irreducible representations of symmetric group S_n for which every matrix has determinant 1.at n=46A045923
• Number of irreducible representations of the symmetric group S_n that have even degree.at n=46A060368
• Fourth column of triangle A067323.at n=8A067325
• Number T(n,k) of permutations of [n] with exactly k (possibly overlapping) occurrences of some of the consecutive step patterns UUD, UDU, DUU (U=up, D=down); triangle T(n,k), n>=0, 0<=k<=max(0,n-3), read by rows.at n=31A231384
• Number of permutations of [n] avoiding simultaneously consecutive step patterns UUD, UDU, DUU (U=up, D=down).at n=10A231385