90607
domain: N
Appears in sequences
- Let M = the 3 X 3 matrix [ 0 1 0 / 0 0 1 / -1, 3*sqrt(3), 3]. M^n * [1 1 1] = [ p q r]; then a(n-1), a(n), a(n+1) = floor p, q, r, respectively.at n=11A094255
- Number of base 31 circular n-digit numbers with adjacent digits differing by 1 or less.at n=9A124803
- Bases b where exactly nine primes p with p < b exist such that p is a base-b Wieferich prime.at n=13A325885
- G.f. satisfies A(x) = ( 1 + x*A(x)^(5/2) * (1 + x) )^2.at n=6A371578