25112

Appears in sequences

• sigma_3(n): sum of cubes of divisors of n.at n=27A001158
• a(0)=1, a(n) = sigma_3(2n).at n=14A091986
• a(n) = sigma_3(3n+1).at n=9A092342
• a(n) = n*A002088(n).at n=42A143270
• Number of walks within N^2 (the first quadrant of Z^2) starting at (0,0), ending on the vertical axis and consisting of n steps taken from {(-1, -1), (-1, 1), (0, 1), (1, -1), (1, 0), (1, 1)}.at n=8A151481
• q-expansion of modular form psi_0^4/t_{3B}.at n=28A198956
• Number of ordered triples (w,x,y) with all terms in {-n,...-1,1,...,n} and 2w^2>x^2+y^2.at n=19A211632
• Number of (n+2) X 8 0..2 matrices with each 3 X 3 subblock idempotent.at n=13A224604
• Expansion of (E_4(q) - E_4(q^5)) / 240 in powers of q where E_4 is an Eisenstein series.at n=27A226333
• Sum of n-th powers of divisors of 28.at n=3A241031
• Number of inequivalent self-complementary Seidel matrices of order n.at n=11A263626
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 629", based on the 5-celled von Neumann neighborhood.at n=27A273297
• Viggo Brun's ternary continued fraction algorithm applied to { log 2, log 3/2, log 5/4 } produces a list of triples (p,q,r); sequence gives r values.at n=30A359744
• Expansion of (1/x) * Series_Reversion( x * (1 - x^3 / (1 - x)^4) ).at n=12A389350