1078000domain: NAppears in sequencesDenominators of coefficients in Airy-type asymptotic expansion.at n=2A069243a(n) = 100^[n/10] + 2*n*10^[n/10]: inspired by Engel expansion of Pi.at n=39A137507a(n) = (5^n/n!^2) * Product_{k=0..n-1} (10k+1)*(10k+4).at n=3A184891