19727

Properties

Appears in sequences

• Primes that remain prime through 3 iterations of function f(x) = 6x + 7.at n=15A023289
• Primes p such that p, p+12, p+24 are consecutive primes.at n=16A052188
• Prime number spiral (clockwise, North spoke).at n=24A054551
• Floor of concatenation of n, n+1, n+2, n+3 divided by 4.at n=7A074994
• Numbers k such that prime(k) + prime(k+1) + prime(k+2) is a square.at n=22A076305
• Primes congruent to 21 mod 59.at n=39A142748
• Primes congruent to 24 mod 61.at n=35A142822
• 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), (0, 0, -1), (0, 0, 1), (0, 1, 1), (1, 1, 0)}.at n=7A151172
• Primes of the form 2*n^2+26*n+11.at n=27A243888
• Initial prime of 4 primes in arithmetic progression with difference 12.at n=39A248085
• Primes p*A007953(p)+1 for p in A338976.at n=37A338977
• Truncate Stirling's asymptotic series for 4! after n terms and round to the nearest integer.at n=78A362116
• Rademacher's partition formula extended to half-integers. a(n) = round(sqrt(48) * (cosh(h(n)) - sinh(h(n))/h(n)) / (24*n + 11)) where h(n) = sqrt(24*n + 11)*(Pi/6).at n=36A376876
• Prime numbersat n=2233