31892
domain: N
Appears in sequences
- G.f.: 1/((1-x)*(1-x^2))^3.at n=27A038163
- Expansion of (3+x)/(1-x)^6.at n=13A059599
- Partial sums of A005587. Fourth column of triangle A115127.at n=15A115129
- 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, 0, -1), (-1, 0, 1), (0, 1, 1), (1, -1, -1)}.at n=11A148219
- a(n) = 36*n^2 - 17*n + 2.at n=29A157265
- Records in A119632.at n=21A210611
- Number of (w,x,y,z) with all terms in {1,...,n} and w*x+y*z>=n^2.at n=24A212132
- Number of ways to move elements of an nXnXn triangular array to themselves or a neighbor, with no 2-cycles and with no more than 1-1 elements moved to themselves.at n=5A271845
- T(n,k)=Number of ways to move elements of an nXnXn triangular array to themselves or a neighbor, with no 2-cycles and with no more than k-1 elements moved to themselves.at n=20A271852