29106
domain: N
Appears in sequences
- Coefficients of Legendre polynomials.at n=5A002463
- Number of Boolean functions of n variables and rank 3 from Post class F(5,inf).at n=7A051375
- a(n) = Sum_{k=1..n, gcd(n,k) = 1} k^3.at n=20A053819
- Numbers whose square is a zeroless pandigital number (i.e., use the digits 1 through 9 once).at n=28A071519
- Products x*y*z arising from A102505.at n=32A102793
- G.f.: A(q) = exp( Sum_{n>=1} A002129(n) * 3*A038500(n) * q^n/n ).at n=23A161804
- A trisection of A161804: a(n) = A161804(3n+2) for n>=0.at n=7A161807
- Number of (n+2) X 3 binary arrays avoiding patterns 001 and 101 in rows and columns.at n=18A202195
- Numbers n such that n contains exactly 5 digits, all distinct, and n^2 contains exactly 9 distinct digits.at n=29A204691
- Number of (w,x,y) with all terms in {0,...,n} and 2*max(w,x,y) > 3*min(w,x,y).at n=31A213393
- Irregular triangle read by rows: the W-transformation of the Catalan triangle A033184.at n=31A228337
- Numbers m such that the GCD of the x's that satisfy sigma(x) = m is 4.at n=32A241649
- a(n) = n-th Rhonda number to base b = n-th composite number, cf. A002808.at n=13A255880
- Number of 2 X 2 planar subsets in an n X n X n cube.at n=22A270205
- Numbers whose square contains all of the digits 1 through 9.at n=28A294661
- Number of cyclic binary sequences of length n containing no abelian 4th powers.at n=40A305594
- G.f. A(x) satisfies: 3*x = Sum_{n=-oo..+oo} (-1)^n * x^(n*(n+1)/2) * A(x)^n.at n=6A355353