129048

Appears in sequences

• a(n) is the smallest number m such that for the n-digit number s=10^(n-1)+ m, 10*s+1, 10*s+3, 10*s+7 and 10*s+9 are primes.at n=32A097639
• Number of (n+4) X 10 0..1 matrices with each 5 X 5 subblock idempotent.at n=20A224688
• Expansion of f(-x)^2 * f(-x^10) / phi(-x)^3 in powers of x where phi(), f() are Ramanujan theta functions.at n=18A262050