48619

Properties

Appears in sequences

• 8-dimensional centered tetrahedral numbers.at n=9A008502
• Central binomial coefficient - 1.at n=18A014495
• Number of combinations of n things from 1 to n at a time, with repeats allowed.at n=8A030662
• One less than number of n-multisets chosen from a 10-set.at n=9A035927
• Primes of the form 666*n + 1.at n=26A037029
• Number of 2n-bead balanced binary necklaces of fundamental period 2n equivalent to reverse.at n=19A045680
• Number of lists of length n from {0..9} summing to n but not beginning with 0.at n=9A071976
• Primes of the form (2*n)!/(n!)^2 - 1.at n=3A092751
• Primes within +1 or -1 of a central binomial coefficient C(2n,n).at n=8A117315
• Primes in A128490.at n=28A128491
• Swinging primes: primes which are within 1 of a swinging factorial (A056040).at n=13A163074
• Primes of the form k$ - 1. Here '$' denotes the swinging factorial function (A056040).at n=6A163076
• Primes of the form ((p+1)/2)^2+((p-1)/2), where p is prime.at n=35A163419
• Primes of the form (p^2-1)/4-p where p are also primes.at n=34A165557
• Ordered differences of central binomial coefficients.at n=36A205008
• Number of permutations of [n] having a shortest ascending run of length 9.at n=9A228676
• Primes of the form T(n) + S(n) + C(n) + 1 where T(n), S(n) and C(n) are the n-th triangular, square and cube numbers.at n=8A228908
• Primes of the form n^2-n-1 (for some n) such that p^2-p-1 is also prime.at n=23A237642
• Number of permutations p of [n] such that p(i) > p(i+1) iff i == 0 (mod 9).at n=18A250286
• Centered 18-gonal (or octadecagonal) primes.at n=29A264825