92379

Appears in sequences

• Euler characteristics of polytopes.at n=19A006481
• a(n) = binomial(n, floor(n/2)) + 1.at n=19A051920
• Inverse Moebius transform of A001405 (binomial(n, floor(n/2))).at n=18A062798
• Number of Young tableaux with n=i*j cells and type i*j matrices with i>=j.at n=17A067231
• Numbers k such that phi(k) + phi(k+1) divides sigma(k) + sigma(k+1).at n=34A067282
• Number of congruence classes (epimorphisms/vertex partitionings induced by graph endomorphisms) of undirected cycles of even length: |C(C_{2*n})|.at n=9A112849
• a(n) = binomial(n, 9) + 1.at n=19A115205
• a(n)=(n^4-n^3-n^2-n)/2.at n=21A171129
• Number of set partitions of {1, 2, ..., 2*n} with sizes in {[n, n], [2n]}.at n=10A260878
• a(n) is the smallest base b such that (b+1)^n in base b is a palindrome.at n=18A367857
• a(n) is the denominator of tanh(Sum_{k=1..n-1} artanh(k/n)), where artanh is the inverse hyperbolic tangent function.at n=9A383431