20660

Appears in sequences

• Number of n X 3 binary matrices under row and column permutations and column complementations.at n=20A006381
• Number of partitions with at most one part divisible by 5.at n=37A039905
• Numbers n such that 117*2^n-1 is prime.at n=41A050584
• Polynomial extrapolation of 2, 3, 5, 7, 11.at n=22A061165
• a(n) = floor(a(n-1)/2) + a(n-2) with a(0)=1, a(1)=2.at n=40A064650
• Numbers k such that k concatenated with k-4 gives the product of two numbers which differ by 5.at n=9A116130
• Numbers k such that k concatenated with k+2 gives the product of two numbers which differ by 1.at n=5A116170
• Number of 0..5 arrays x(0..n) of n+1 elements with zero n-1st differences.at n=14A200079