122120

Appears in sequences

• A summarize Fibonacci sequence starting with a(0)=2 and a(1)=0: summarize the previous two terms!.at n=3A036108
• Number of closed knight's tour diagrams of a 3 X n chessboard that have "Bergholtian symmetry".at n=26A169766
• Numbers n such that there is k < n for which A003557(k) = A003557(n), A048250(k) = A048250(n) and A173557(k) = A173557(n).at n=23A296087
• Three-column table read by rows: Triples that have the same value of phi, sigma, and tau.at n=7A322679
• Three-column table read by rows: Primitive distinct triples that have the same value of phi, sigma, and tau.at n=7A322689
• G.f. A(x) satisfies: A(x) = 1 + x * A(x)^5 / (1 + x).at n=7A349361