18132
domain: N
Appears in sequences
- (n,4,1) difference families over Z_n.at n=48A010893
- The array of A063179 read by diagonals in direction of creation.at n=49A063180
- The array of A063179 read by diagonals in the 'up' direction.at n=49A063181
- Difference between A095765 and A095766.at n=24A113858
- a(n) = Sum_{k=0..n} F(k+1)^2*F(n-k+1)^2 where F = Fibonacci numbers (A000045).at n=9A136429
- A090801(2n-1)+A090801(2n).at n=40A140958
- Number of numbers in row n of the array at A243851.at n=22A243853
- Number of Dyck paths of semilength n having exactly 2 (possibly overlapping) occurrences of the consecutive steps UDUUUDDDUD (with U=(1,1), D=(1,-1)).at n=7A243872
- Number T(n,k) of Dyck paths of semilength n having exactly k (possibly overlapping) occurrences of the consecutive steps UDUUUDDDUD (with U=(1,1), D=(1,-1)); triangle T(n,k), n>=0, 0<=k<=max(0,floor((n-1)/4)), read by rows.at n=39A243881
- Numbers k such that 4*10^k + 63 is prime.at n=25A274214
- Length of period of continued fraction expansion of sqrt(3*2^n).at n=30A294226
- Expansion of e.g.f. 1/(1 - x)^log(1 - x).at n=8A308346
- Triangle read by rows where row n is the largest (or middle or n-th) column of the reverse pyramid summation of order n described in A359087.at n=52A360145