113920
domain: N
Appears in sequences
- Number of noninvertible 2 X 2 matrices over Z/nZ (determinant is a divisor of 0).at n=18A020479
- Numbers k such that 2*k! - 1 is prime.at n=30A076133
- Expansion of 1/sqrt(1 - 4*x + 12*x^2).at n=12A098336
- Expansion of 1/sqrt(1+4*x+12*x^2).at n=12A116093
- Sequence arising from the factorization of F(n)= A091914(n-1) and L(n)= A127262. F(0)=0, F(1)=1, F(n)=2*F(n-1)+12*F(n-2), L(0)=2, L(1)=2, L(n)=2*L(n-1)+12*L(n-2).at n=14A127609
- 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 369", based on the 5-celled von Neumann neighborhood.at n=16A287859
- AGM transform of triangular numbers.at n=3A368370