233928

Appears in sequences

• Non-perfect powers k for which q = A051903(k)/A051904(k) is an integer, A051904(k) > 1.at n=29A093770
• Transform of n^3 by the Riordan array (1/(1-x^2), x).at n=36A105636
• Number of reduced words of length n in Coxeter group on 4 generators S_i with relations (S_i)^2 = (S_i S_j)^7 = I.at n=11A164353
• Numbers with prime factorization p^2*q^3*r^4 where p, q, and r are distinct primes.at n=22A190115
• Coefficient of x in the reduction by (x^2->x+1) of the polynomial p(n,x) defined below at Comments.at n=17A192923
• a(n) = n^4/8 if n is even, a(n) = (n^2-1)^2/8 if n is odd.at n=37A212892
• Smallest number that can be written in exactly n ways as sum of two quarter-squares.at n=21A240952
• Total number of unit squares appearing in the Thue-Morse sequence logical matrices after n stages.at n=11A241682
• Total number of unit squares appearing in the Thue-Morse sequence of logical matrices (1, 0 version) after n stages.at n=11A241891
• Sum of cubes of the first n even numbers (A016743).at n=18A254371
• Nonmultiples of 10 that are divisible by the square of the sum of the squares of their digits.at n=20A379982