26524

Appears in sequences

• a(n) = binomial(n+2, 2) + binomial(n+4, 5).at n=18A027658
• Row sums of triangle A105626.at n=5A105628
• Number of frieze patterns of length n under a certain group (see Pisanski et al. for precise definition).at n=10A123046
• Number of nondecreasing -2..2 vectors of length n whose dot product with some nonincreasing -2..2 vector equals n.at n=31A226393
• First differences of A293160.at n=24A295783
• Table read by antidiagonals: T(n,k) is the number of tilings of the n X k torus up to horizontal and vertical reflections by an asymmetric tile.at n=16A368304
• Table read by antidiagonals: T(n,k) is the number of tilings of the n X k torus up to horizontal and vertical reflections by an asymmetric tile.at n=19A368304
• Row sums of the triangle A391318, given by T(n,k) = T(n-1,k) + T(n-1,k-1) + T(n-2,k-1) + 1, with T(0,0) = T(n,-1) = T(n,n+1) = 0.at n=11A391272