22275

Appears in sequences

• Stirling numbers of the second kind S(n+3, n).at n=9A001297
• Stirling numbers of second kind S2(12,n).at n=8A011561
• Expansion of e.g.f. theta_3^(11/2).at n=5A015671
• Odd numbers k that divide phi(k)*sigma(k).at n=21A015706
• Odd 10-gonal (or decagonal) numbers.at n=37A028993
• PDan numbers: numbers n of the form 3^A * 5^B * 7^C * 11^D with n+-2 and n+-4 prime.at n=7A029712
• Odd numbers divisible by exactly 7 primes (counted with multiplicity).at n=21A046320
• Composite numbers divisible by the palindromic sum of their prime factors (counted with multiplicity).at n=36A046358
• Odd numbers divisible by the palindromic sum of their prime factors (counted with multiplicity).at n=9A046359
• Composite numbers divisible by the palindromic sum of their palindromic prime factors (counted with multiplicity).at n=20A046366
• Odd numbers divisible by the palindromic sum of its palindromic prime factors (counted with multiplicity).at n=4A046367
• Number of nonempty subsets of {1,2,...,n} in which exactly 4/5 of the elements are <= (n-4)/2.at n=25A048068
• Stirling numbers of second kind: 9th column of Stirling2 triangle A008277.at n=3A049447
• Denominators in expansion of exp(2x)/(1-x).at n=11A053485
• a(n) = Product_{i=2..n} (prime(i) - 2).at n=6A059861
• Odd primitive numbers such that n! divided by product of factorials of all proper divisors of n is not an integer.at n=27A075460
• Schroeder pseudoprimes: Composites k that divide the k-th Schroeder number A001003(k-1).at n=26A075764
• a(n) = floor(average of first n cubes).at n=43A078618
• Number of columns in the character table of the symmetric group S_n that have zero sum.at n=37A085642
• Triangle read by rows: T(n, k) = binomial(n, k) * binomial(n+k, n-k).at n=46A092371