38451
domain: N
Appears in sequences
- a(n) is the least index such that the least primitive root of the a(n)-th prime is n, or zero if no such prime exists.at n=54A066529
- Numbers k such that k and 2*k, taken together are pandigital.at n=35A115922
- First occurrence of n consecutive n's in the decimal expansion of log(2).at n=4A228242
- Number of (n+1)X(n+1) 0..1 arrays with every 2X2 subblock ne-sw antidiagonal difference nondecreasing horizontally and nw+se diagonal sum nondecreasing vertically.at n=7A258546