59454

Appears in sequences

• Numbers having four 0's in base 9.at n=28A043456
• Number of invertible Steinhaus matrices of order n.at n=15A065763
• Coefficient triangle of polynomials (falling powers) related to convolutions of A001045(n+1), n>=0, (generalized (1,2)-Fibonacci). Companion triangle is A073400.at n=11A073399
• Coefficient triangle of polynomials (rising powers) related to convolutions of A001045(n+1), n >= 0, (generalized (1,2)-Fibonacci). Companion triangle is A073402.at n=13A073401
• Numbers k such that 4*10^k + 8*R_k + 1 is prime, where R_k = 11...1 is the repunit (A002275) of length k.at n=17A103000
• Number of nX3 integer arrays with each element equal to the number of horizontal, vertical and antidiagonal neighbors less than or equal to itself.at n=4A265962
• Number of nX5 integer arrays with each element equal to the number of horizontal, vertical and antidiagonal neighbors less than or equal to itself.at n=2A265964
• T(n,k)=Number of nXk integer arrays with each element equal to the number of horizontal, vertical and antidiagonal neighbors less than or equal to itself.at n=23A265965
• T(n,k)=Number of nXk integer arrays with each element equal to the number of horizontal, vertical and antidiagonal neighbors less than or equal to itself.at n=25A265965
• The sum of the first n terms of the sequence is the concatenation of the first n digits of the sequence, and a(1) = 6.at n=4A299869
• Row sums of A321625.at n=10A321626
• Expansion of g.f. A(x) = Sum_{n=-oo..+oo} x^n * (3 + x^n)^(2*n).at n=5A363559