19475

Appears in sequences

• Numbers k such that [A070080(k), A070081(k), A070082(k)] is an integer Heronian triangle having triangular area.at n=19A070148
• Number of unlabeled, connected graphs on n vertices with no induced subgraph isomorphic to a bull-graph.at n=8A079575
• Coefficient of the irreducible character of S_m indexed by (m-2n+2,2n-2) in the n-th Kronecker power of the representation indexed by (m-2,2).at n=20A090809
• Numbers 41*k such that 41*k+2 and 41*k-6 are both prime.at n=5A153822
• Number of ways to place 3 nonattacking zebras on a 3 X n board.at n=16A172221
• Number of ordered triples (w,x,y) with all terms in {-n,...-1,1,...,n} and 3w+x+y>0.at n=17A211628
• Number of ordered ways to achieve a score of n in American football taking into account different scoring methods.at n=29A237997
• Number of (n+1) X (4+1) 0..2 arrays with every 2 X 2 subblock diagonal minus antidiagonal sum nondecreasing horizontally, vertically and ne-to-sw antidiagonally.at n=4A253491
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock diagonal minus antidiagonal sum nondecreasing horizontally, vertically and ne-to-sw antidiagonally.at n=32A253495
• Number of (5+1) X (n+1) 0..2 arrays with every 2 X 2 subblock diagonal minus antidiagonal sum nondecreasing horizontally, vertically and ne-to-sw antidiagonally.at n=3A253499
• Rhonda numbers in sexagesimal number system.at n=7A255731
• Numbers k such that (199*10^k - 7)/3 is prime.at n=21A281990
• Trajectory of 48 under the map x -> A289667(x).at n=6A290350
• Number of partitions of n in which the sequence of the sum of the same summands is increasing.at n=52A304428
• Number of compositions of n with distinct circular differences up to sign.at n=27A325553
• Numbers that are the sum of six fourth powers in exactly four ways.at n=36A345816
• a(n) is the smallest number which can be represented as the sum of n distinct nonzero squares in exactly 2 ways, or -1 if no such number exists.at n=37A374287
• Primitive terms of A389634.at n=37A389635