70656

Appears in sequences

• Theta series of laminated lattice LAMBDA_11^{max}.at n=7A006911
• a(n) = (-tau(n) + sigma_11(n)) / 691, where tau is Ramanujan's tau (A000594), sigma_11(n) = Sum_{ d divides n } d^11 (A013959).at n=4A027860
• a(n) = A004034(n)/16.at n=3A045824
• Product of all distinct nonzero numbers that can be formed from the digits of n.at n=45A061497
• a(n) = sum_{k=1..n} prime(k)*prime(k+1).at n=24A074745
• XOR difference triangle, read by rows, of A099898 (in leftmost column) such that the main diagonal equals A099898 shift left and divided by 4.at n=38A099897
• Smallest number beginning with 7 and having exactly n prime divisors counted with multiplicity.at n=11A106427
• a(n) = n^2*(2*n + 5).at n=32A163683
• a(n) = Sum_{d|n} A007955(d) * A007955(n/d), where A007955(m) = product of divisors of m.at n=31A174936
• Numbers with 44 divisors.at n=10A175751
• The greedy sequence of real numbers at least 1 that do not contain any 3-term geometric progressions with integer ratio.at n=33A235054
• Expansion of phi(x)^2 / phi(-x^2) in powers of x where phi() is a Ramanujan theta function.at n=40A260314
• Solutions y to the negative Pell equation y^2 = 72*x^2 - 1331712 with x,y >= 0.at n=8A281242
• Number of maximum independent vertex sets and minimum vertex covers in the n-web graph.at n=21A297439
• Regular triangle read by rows: T(n,k) is the number of multiset partitions of normal multisets of size n into k blocks, where a multiset is normal if it spans an initial interval of positive integers.at n=52A317532
• a(n) = (n!)^2 * Sum_{k=0..n-1} 1 / ((n-k)^2 * k!).at n=6A346405