80196

Appears in sequences

• Denominators of continued fraction convergents to sqrt(569).at n=11A042091
• Solution to the Dancing School Problem with 8 girls and n+8 boys: f(8,n).at n=5A079913
• Solution to the Dancing School Problem with n girls and n+5 boys: f(n,5).at n=7A079924
• Number of simple unlabeled graphs on n nodes with exactly 8 connected components that are trees or cycles.at n=15A215988
• Number of n X 3 binary arrays with rows and columns lexicographically nondecreasing and column sums nonincreasing.at n=18A266465
• Let v = list of denominators of Farey series of order n (see A006843); a(n) = sum of products of adjacent terms of v.at n=27A278046
• Number of permutations s_1,s_2,...,s_n of 1,2,...,n such that for all j=1,2,...,n, Sum_{i=1..j} s_i divides Sum_{i=1..j} s_i^3.at n=14A291445
• Number of permutations s_1,s_2,...,s_n of 1,2,...,n with s_n = n (if n>0) and such that for all j=1,2,...,n, Sum_{i=1..j} s_i divides Sum_{i=1..j} s_i^3.at n=16A291518
• Number of nX3 0..1 arrays with every element unequal to 0, 1, 2, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero.at n=5A316810
• Number of nX6 0..1 arrays with every element unequal to 0, 1, 2, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero.at n=2A316813
• T(n,k)=Number of nXk 0..1 arrays with every element unequal to 0, 1, 2, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero.at n=30A316815
• T(n,k)=Number of nXk 0..1 arrays with every element unequal to 0, 1, 2, 3, 4, 5 or 7 king-move adjacent elements, with upper left element zero.at n=33A316815