26217

Appears in sequences

• Numbers whose base-4 representation contains exactly four 1's and four 2's.at n=21A045109
• Number of different cycles computed with the generalized 3x+1 problem using C=2, B=Cn+m, A=C^m.at n=19A096010
• a(n) = 36*n^2 - n.at n=26A157286
• a(n) = 729*n^2 - 27.at n=5A158655
• Number of 2 X 2 matrices having all terms in {1,...,n} and determinant >n.at n=15A211060
• Number of nondecreasing -n..n vectors of length 4 whose dot product with some nondecreasing -n..n vector equals 4.at n=12A226412
• Composites whose prime factorization in base 5 is an anagram of the number in base 5.at n=17A260049
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 969", based on the 5-celled von Neumann neighborhood.at n=26A273849
• Numbers k such that prime(k+1)^prime(k+3) == prime(k) mod prime(k+2).at n=16A335571