33300

Appears in sequences

• Numbers whose base-8 representation has exactly 6 runs.at n=10A043628
• A064637 converted to factorial base.at n=28A064477
• Smallest multiple of n using only digits 0 and 3.at n=35A078242
• Number of unrooted regular odd-valent planar maps with 2 vertices; maps are considered up to orientation-preserving homeomorphisms and the vertices are of valency 2n+1.at n=6A112944
• Number of unrooted two-vertex (or, dually, two-face) regular planar maps of valency n considered up to orientation-preserving homeomorphism.at n=12A113182
• Numbers k such that 2*k+1, 4*k+1, 8*k+1 and 16*k+1 are primes.at n=28A124412
• Numbers k such that 2*k+1, 4*k+1, 8*k+1, 16*k+1 and 32*k+1 are primes.at n=7A124413
• Exponential abundant numbers: integers k for which A126164(k) > k, or equivalently for which A051377(k) > 2k.at n=33A129575
• Numbers k such that k and k^2 use only the digits 0, 1, 3, 8 and 9.at n=55A136852
• Numbers whose decimal expansion contains only 0's and 3's.at n=28A169966
• Numbers with prime factorization pq^2r^2s^2.at n=17A189344
• Smallest multiple of n whose factorial digit sum equals n.at n=19A191895
• Numbers n such that n and n^4 are sums of two twin primes.at n=3A212430
• G.f.: Sum_{n>=0} x^n / Product_{k=0..n} (1 - k*x)^2.at n=8A216367
• Numbers n = x0 x1 x2...x9 such that xi is the number of digits greater than i in n.at n=32A226195
• Irregular triangle read by rows: T(n,k) = number of crossing connected diagrams in a disk having n crossings and k vertices.at n=31A232225
• Numbers k such that k+1, 2k+1, 3k+1, 4k+1 are all prime.at n=13A237189
• Sequence A261220 shown in factorial base: a(n) = A007623(A261220(n)).at n=53A260743
• G.f. A(x) satisfies: A(x)^3 - 3*A(x)^4 = A(x^3).at n=8A274396
• Expansion of Product_{k>=1} (1 + x^k)^A007437(k).at n=13A301874