39240

Appears in sequences

• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 11.at n=20A031689
• McKay-Thompson series of class 16A for Monster.at n=20A058514
• Numbers k such that (3^k - 7)/2 is prime.at n=16A063679
• a(n) = 3*a(n-1) + 3*a(n-3) + a(n-4).at n=9A089931
• Expansion of (chi(q)^4 / chi(-q))^2 in powers of q where chi() is a Ramanujan theta function.at n=10A143895
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 0), (-1, 0, 0), (-1, 1, -1), (1, 0, 0), (1, 1, 1)}.at n=8A150690
• a(n) = 121*n^2 + 2*n.at n=17A181679
• a(n) = 256n^2 - 828n + 656 (n>=1).at n=13A304379
• Binomial transform of the Apéry numbers (A005259).at n=4A322518
• Numbers k for which A306927(k) [= A001615(k)-k] is a multiple of A344705(k) [= A001615(k)-A001065(k)], and their quotient is nonnegative.at n=42A344700
• Numbers k sandwiched between twin primes, such that k times the reverse of k is also sandwiched between twin primes.at n=26A357076
• Expansion of (1/x) * Series_Reversion( x / (1/(1-x)^3 + x^2) ).at n=6A369620