25250

Appears in sequences

• Positive integers n such that n | (2^n + n/2 + 1).at n=11A015945
• Numbers k such that k | 3^k + 1.at n=9A015949
• Numbers k such that k | 7^k + 1.at n=10A015954
• Numbers k that divide 4^k + 2^k or 8^k + 4^k.at n=47A045577
• Numbers k that divide 6^k + 2^k.at n=27A045579
• Numbers k that divide 8^k + 6^k.at n=31A045601
• Numbers k that divide 9^k + 7^k.at n=20A045605
• Numbers n such that n | 4^n + 3^n + 2^n + 1^n.at n=31A056643
• Numbers k such that k | 10^k + 9^k + 8^k + 7^k + 6^k + 5^k + 4^k + 3^k.at n=16A057283
• Numbers k such that 3^k (mod 2^k) is prime.at n=21A178995
• Number of 3 X n 0..1 arrays with rows and antidiagonals unimodal and columns nondecreasing.at n=13A224147
• Sum of the second largest parts of the partitions of 4n into 4 parts.at n=14A241084
• Rocket sequence 50: a(0)=50, a(n)=A073846(a(n-1)).at n=44A262149
• Consider n equally spaced points along a line and join every pair of points by a semicircle above the line; a(n) is the number of intersection points.at n=30A290447
• Numbers n such that the multiplicative group of integers modulo n is isomorphic to C_m X C_m, m > 1.at n=9A305236
• For successive terms of A002202, totient values t, lcm({x: phi(x)=t})/gcd({x: phi(x)=t}).at n=37A317013
• Expansion of (1/x) * Series_Reversion( x * (1-x)^2 / (1+x^3) ).at n=7A369265
• Consecutive states of the linear congruential pseudo-random number generator (1255*s + 6173) mod 29282 when started at s=1.at n=13A385339
• Records in A390108.at n=13A390454