56104

Appears in sequences

• Number of nX4 0..3 arrays with every element neighboring horizontally or vertically both a 0 and a 1, and 2 introduced before 3 in row major order.at n=4A204297
• Number of nX5 0..3 arrays with every element neighboring horizontally or vertically both a 0 and a 1, and 2 introduced before 3 in row major order.at n=3A204298
• T(n,k)=Number of nXk 0..3 arrays with every element neighboring horizontally or vertically both a 0 and a 1, and 2 introduced before 3 in row major order.at n=31A204301
• T(n,k)=Number of nXk 0..3 arrays with every element neighboring horizontally or vertically both a 0 and a 1, and 2 introduced before 3 in row major order.at n=32A204301
• Number of multiples of n which have only distinct and nonzero digits in base 10.at n=16A328287
• Number of partitions of n whose greatest part is a multiple of 5.at n=52A363047
• a(n) = Sum_{k=3..n} binomial(k,3) * floor(n/k).at n=33A366971