28892

Appears in sequences

• a(n) = prime(n)*prime(n-1) + 1.at n=39A023523
• Number of binary words of length n (beginning 0) with autocorrelation function 2^(n-1)+2.at n=18A045692
• Number of 3 X 3 integer matrices with elements in the range [ -n,n ] which generate a group of order six under binary matrix multiplication.at n=2A054468
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, -1, 1), (-1, 1, -1), (1, 0, 1), (1, 1, 0)}.at n=8A150373
• a(n) is the number of permutations of length n that avoid the pattern 321 and the mesh pattern (12, 171) or the same sequence for the mesh pattern (12, 426).at n=11A289591
• Number of integer partitions of n whose mean is not an integer.at n=39A349156
• Expansion of (1 - x^2)/((1 - x^10)*(1 - x - x^2)).at n=23A349843