66641

Appears in sequences

• Numbers k such that Euler phi(k) / Carmichael lambda(k) = 34.at n=11A066698
• 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), (0, 0, 1), (0, 1, 0), (0, 1, 1), (1, 1, -1)}.at n=8A151094
• Number of integers in the smallest interval containing both minimal and maximal possible apex values of an addition triangle whose base is a permutation of n+1 consecutive integers.at n=13A206604
• Number of unimodal functions [1..n]->[0..2].at n=34A223718
• Partial sums of repdigit numbers (A010785).at n=37A277209
• a(n) is the number of binary (0,1) sequences of length n that have at most two zeros in a window of seven consecutive symbols.at n=26A334251
• E.g.f. A(x) satisfies A(x) = exp( x * cos(x * A(x)^(1/2)) ).at n=8A381308