21454

Appears in sequences

• A generalized partition function.at n=24A002598
• Generating function: 1/((1-x)*(1-x^2)^2*(1-x^3)^3*(1-x^4)^4).at n=25A064349
• Numbers such that the nonzero product of the digits of its 4th power is also a 4th power.at n=10A066734
• Number of two-rowed partitions of length 6.at n=26A070559
• Number of binary strings of length n with no substrings equal to 0010 1011 or 1100.at n=17A164502
• Number of nondecreasing strings of numbers x(i=1..n) in -5..5 with sum x(i)^3 equal to 0.at n=18A188273
• Numbers k such that k^4096 + (k+1)^4096 is prime.at n=10A274236
• a(n) is the least k > n such that n divides k, and n+1 divides k+1, and n+2 divides k+2.at n=33A295388
• a(n) = (-2 - (-1)^n*(-2 + n) + n + 2*n^3)/4.at n=35A323723
• The number of vertices formed on an isosceles triangle by straight line segments mutually connecting all vertices and all points that divide the two equal length sides into n equal parts; the base of the triangle contains no points other than its vertices.at n=17A333026