17958

Appears in sequences

• Number of partitions of n into 3 or more parts.at n=35A004250
• McKay-Thompson series of class 24H for Monster.at n=28A058578
• Squarefree n such that the elliptic curve n*y^2 = x^3 - x arising in the "congruent number" problem has rank 3.at n=29A062693
• a(n) = 997*n + 1009.at n=17A100776
• Indices of primes in sequence defined by A(0) = 97, A(n) = 10*A(n-1) - 3 for n > 0.at n=20A101013
• Sum of the first n weird numbers.at n=4A125114
• Numbers n with property that 4 n^2 are squares arising in A158470.at n=35A158517
• Numbers n such that there is no triangular n-gonal number greater than 1.at n=33A188892
• Number of 5X2 integer matrices with each row summing to zero, row elements in nondecreasing order, rows in lexicographically nondecreasing order, and the sum of squares of the elements <= 2*n^2 (number of collections of 5 zero-sum 2-vectors with total modulus squared not more than 2*n^2, ignoring vector and component permutations).at n=22A192705
• Numbers n such that for some m, A166133(m)=n, A166133(m+1)=n^2-1, in order of increasing m.at n=30A256406
• Numbers n such that for some m, A166133(m)=n, A166133(m+1)=n^2-1, in increasing order.at n=29A256407
• Numbers k such that 385*2^k+1 is prime.at n=37A322998
• The five digits of a(n) and their four successive absolute first differences are all distinct.at n=2A365257
• Smallest number k such that both k^n - 1 and k^n + 1 have n prime factors, counted with repetitions.at n=7A385315