88153
domain: N
Appears in sequences
- Numbers k such that 281*2^k + 1 is prime.at n=26A053357
- Number of permutations of length n which avoid the patterns 1234, 1324, 3421.at n=14A116829
- a(n) = floor((numerator of H(n))/n), where H(n) = Sum_{k=1..n} 1/k is the n-th harmonic number.at n=12A128437
- A142459(2*n,n)/(n+1).at n=3A172014
- Number of n X 7 0..1 arrays with every element equal to 0, 1, 2, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.at n=4A303181
- Number of 5Xn 0..1 arrays with every element equal to 0, 1, 2, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.at n=6A303185
- Number of partitions of n such that 5*(greatest part) >= (number of parts).at n=44A347869