40838

Appears in sequences

• Numbers k that divide A005554(k) (the sum of consecutive Motzkin numbers).at n=44A081741
• Numbers n such that 55*10^n + 1 is prime.at n=17A109800
• Number of nX6 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 1 and 0 1 0 vertically.at n=4A207240
• T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 1 and 0 1 0 vertically.at n=49A207242
• Number of 5Xn 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 1 and 0 1 0 vertically.at n=5A207245
• Number of squarefree parts in the partitions of n into 8 parts.at n=45A309461