45815
domain: N
Appears in sequences
- a(n) = n*(n+5)*(n+6)*(n+7)/24.at n=28A005587
- Expansion of Product_{k>=1} (1 - x^k)^17.at n=12A010823
- Nearest integer to log(n^n)^(1 + log(log(1 + n))).at n=32A062480
- Numbers n such that z(n) and z(n+1) are both prime, where z(n) = a^d + b^d + c^d + ..., where a*b*c* ... is the prime factorization of n and d is the largest digit of n.at n=28A109280
- a(n) = (2*n^3 + 5*n^2 - 7*n)/2.at n=34A162261
- The number of closed normal form lambda calculus terms of size n, where size(lambda x.M)=2+size(M), size(M N)=2+size(M)+size(N), and size(V)=1+i for a variable V bound by the i-th enclosing lambda (corresponding to a binary encoding).at n=30A195691
- Number of magic labelings with magic sum n of first graph shown in link.at n=13A244869
- Number of (4+2)X(n+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 0 1 3 6 or 7 and every 3X3 column and antidiagonal sum not equal to 0 1 3 6 or 7.at n=9A252309
- Triangle with n-th row polynomial equal to Product_{k = 1..n} (x + n + k).at n=32A257635
- Occurrences of decrease of the probability density P(n) of coprime numbers k,m, satisfying 1 <= k <= a(n) and 1 <= m <= a(n), and a(n) congruent to 1 (mod 2) and a(n) not congruent to 3 (mod 6).at n=17A280879
- a(n) is the least integer that can be expressed as the difference of two pentagonal numbers in exactly n ways.at n=10A334034
- The number of overpartitions of n having an equal number of overlined and non-overlined parts.at n=39A340659