25620

Appears in sequences

• Theta series of A_6 lattice.at n=22A008446
• a(n) = n*(n + 1)*(3*n + 1).at n=20A027903
• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 16.at n=20A031694
• Numbers m such that N=(am+1)(bm+1)(cm+1) is a 3-Carmichael number (A087788), where a,b,c = 1,2,19.at n=3A064246
• Values of m such that N=(am+1)(bm+1)(cm+1) is a 3-Carmichael number (A087788), where a,b,c = 1,2,29.at n=4A064251
• Values of m such that N=(am+1)(bm+1)(cm+1) is a 3-Carmichael number (A087788), where a,b,c = 1,2,31.at n=3A064252
• Values of m such that N = (am+1)(bm+1)(cm+1) is a 3-Carmichael number (A087788), where a,b,c = 1,2,57.at n=6A065697
• One-sixth the area of the smallest primitive d-arithmetic triangle, where d=A072330(n).at n=39A072360
• 45-gonal numbers: n*(43*n-41)/2.at n=34A098924
• Structured truncated dodecahedral numbers.at n=11A100153
• Triangle read by rows: T(n,k) is the number of alternating max-precedes-min permutations on [n+2] with 1 in position k+2, 0<=k<=n.at n=48A104346
• Numbers n such that p(12n) is prime, where p(n) is the number of partitions of n.at n=29A115214
• a(n) = 256*n^2 + 2*n.at n=9A158230
• a(n) = 400*n^2 + 20.at n=8A158601
• Number of isosceles triangles that can be formed from the n^2 points of n X n grid of points (or geoboard).at n=11A186434
• a(n) = number of ordered triples (w,x,y) such that w,x,y are all in {0,...,n} and the numbers |w-x|, |x-y|, |y-w| are distinct.at n=30A212963
• Total sum of the 5th powers of lengths of ascending runs in all permutations of [n].at n=5A228995
• Total sum of the n-th powers of lengths of ascending runs in all permutations of [n].at n=5A229002
• a(n) = n + floor( n^2/2 + n^3/3 ).at n=42A236773
• Numbers k with the property that p = k^2 - 11 and q = k^2 + 11 are consecutive primes.at n=38A248790