19822

Appears in sequences

• n times the n-th prime is made of nontrivial runs of identical digits.at n=2A116058
• Start with a(1) = 1, a(2) = 1, then a(n)*3^k = a(n+1) + a(n+2), with 3^k the smallest power of 3 (k>0) such that all terms a(n) are positive integers.at n=23A233525
• Expansion of f(-x^2, -x^10) / f(-x, -x) in powers of x where f(, ) is Ramanujan's general theta function.at n=27A262984
• Number of length n arrays of permutations of 0..n-1 with each element moved by -8 to 8 places and the average of every three consecutive elements is never greater than the median of the previous three elements.at n=13A263734
• 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=23A334251
• Number of integer partitions of n whose weak run-sums cover an initial interval of nonnegative integers.at n=50A353863