29830

Appears in sequences

• Number of n-step self-avoiding walks on hexagonal lattice from (0,0) to (0,4).at n=6A005551
• Let M(n) be the n X n matrix m(i,j)=min(i,j) for 1<=i,j<=n then a(n) is the trace of M(n)^(-6).at n=33A114358
• Numbers k such that k and k^2 use only the digits 0, 2, 3, 8 and 9.at n=9A136896
• 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), (0, -1, 1), (0, 1, 0), (1, 0, 0)}.at n=9A149927
• 28-gonal pyramidal numbers: a(n) = n*(n+1)*(26*n-23)/6.at n=19A256648
• Integers k that have the property that there exists an integer x with n+1 digits, such that 1 <= k/x < 2 and k/x = 1 + (x-10^n)/(10^n-1), i.e., the same digits appear in the denominator and in the recurring decimal.at n=15A288782
• a(n) = Sum_{k=0..n} floor(sqrt(k))^5.at n=30A363499
• Table read by rows: number of connected components of polyhedra in the quarter cubic honeycomb consisting of k tetrahedra and n-k truncated tetrahedra, up to translation, rotation, and reflection of the honeycomb, 0<=k<=n.at n=61A384486