102912

Appears in sequences

• Logarithms (cf. A179989) f:{1,...,n}->Z/nZ such that either (i) n is odd or (ii) n is even and f(m) is even whenever m divides n/2.at n=39A179990
• Let L = A185064(n) be the n-th length for which a Golay sequence exists; a(n) = number of Golay sequences of length L.at n=12A208924
• Decimal representation of the diagonal from the origin to the corner of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 214", based on the 5-celled von Neumann neighborhood.at n=17A286737
• Triangle read by rows: T(n,k) is the coefficient of (1+x)^k in the ZZ polynomial of the hexagonal graphene flake O(3,4,n).at n=45A338259
• Expansion of 1/Product_{k>=1} (1 - x^k)^(valuation(k,4) + 1).at n=40A373295