186900

Appears in sequences

• Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite LTA = Linde Type A.at n=7A019033
• Solution of the complementary equation a(n) = a(n-1) + a(n-2) + b(n-2)^2, where a(0) = 1, a(1) = 3, b(0) = 2, and (a(n)) and (b(n)) are increasing complementary sequences.at n=19A296258
• G.f. A(x) satisfies A(x) = 1 / (1 - x - x^2 * A(x^3)).at n=23A367666