22384

Appears in sequences

• Total number of round trips of length n on the closed Laguerre graph Lc_4 divided by 4.at n=5A201200
• Number of length n+7 0..1 arrays with at most one downstep in every n consecutive neighbor pairs.at n=39A255998
• Expansion of f(x^3, x^9) * f(x^6, x^6) / f(-x, -x^2) in powers of x where f(,) is Ramanujan's general theta function.at n=32A257655
• Numbers k such that (38*10^k + 691)/9 is prime.at n=19A290476
• Number of triangles in the graph formed by drawing the lines connecting any two of the 2*(n+2) perimeter points of a 3 X (n+1) rectangular grid of points (or equally, a 2 X n grid of squares).at n=19A332606
• Irregular triangle read by rows: consider the structure formed by drawing the lines connecting any two of the 2*(n+2) perimeter points of an (n+1) X 3 rectangular grid of points (or equally, an n X 2 grid of squares); row n gives number of cells with k sides, for k >= 3.at n=71A335701
• a(n) is the Wiener index of a broom on 2n vertices of which n+2 are pendant.at n=29A349416
• Number of integer partitions of n with the same length as reverse-alternating sum.at n=57A357487
• Number of integer partitions of 2n - 1 with the same length as alternating sum.at n=28A357488