106272

Appears in sequences

• Number of ternary Lyndon words of length n with trace 0 and subtrace 0 over GF(3).at n=14A053548
• Numbers n such that phi(n) is the sum of the first k divisors of n for some k.at n=24A072278
• An eighth of the product of three integers surrounding the (n+1)-st prime, minus half of the product of the 3 numbers surrounding n+1.at n=23A141535
• Antidiagonal sums of A179748.at n=29A186425
• Number of 5-step king's tours on an n X n board summed over all starting positions.at n=8A186864
• Numbers with prime factorization pq^4r^5.at n=18A190468
• E.g.f. 1/(1-sin(x))^x.at n=9A191416
• Consider numbers n = concat(w,x,y,z) such that w*x*y*z | n. Leading zeros in x, y and z allowed. Sequence lists numbers that admit at least two such concatenations.at n=13A257172
• a(n) = n^4 * Sum_{d^2|n} 1 / d^4.at n=17A351602
• Triangle read by rows: Coefficients of the polynomials N(n, x) * EZ(n, x), where N denote the Narayana polynomials A131198 and EZ the Eulerian zig-zag polynomials A205497.at n=48A373431
• Triangle read by rows: Coefficients of the polynomials N(n, x) * EZ(n, x), where N denote the Narayana polynomials A131198 and EZ the Eulerian zig-zag polynomials A205497.at n=53A373431