33156

Appears in sequences

• Coefficients of Jacobi Eisenstein series of index 1 and weight 8.at n=8A003783
• Number of equilateral triangles whose vertices (whether connected by lines or not) lie at intersection points resulting from drawing lines connecting every pair of vertices of a regular 3n-gon (and extending beyond the polygon).at n=3A036403
• Numbers n such that the n-th prime - n is a cube.at n=11A105645
• Numbers n such that prime(n) - n is a prime power.at n=20A109315
• A binomial recursion: a(n) = p(n) (see formula).at n=5A135149
• a(n) = 18*a(n-1) - 78*a(n-2) for n > 1; a(0) = 3, a(1) = 30.at n=4A163475
• Expansion of x*( 1+2*x-x^2-6*x^3 ) / ( 1-9*x^2+12*x^4 ).at n=11A176968
• Number of permutations of 4 copies of 1..n avoiding adjacent step pattern up, down, down, up, down, up.at n=2A177662
• Numbers n such that the decimal number concat(9,n) is a square.at n=32A273364
• Numbers k such that (26*10^k - 503)/9 is prime.at n=18A296051
• a(n) = 256n^2 - 828n + 656 (n>=1).at n=12A304379