2059264domain: NAppears in sequencesa(n) = p*(p+(2n-1))/2, where p = A096822(n) is the smallest primes of form 2^x-(2n-1).at n=18A096823Triangle of Poupard numbers g_n(k) read by rows, n>=1, 1<=k<=2n-1.at n=39A236934Triangle of Poupard numbers g_n(k) read by rows, n>=1, 1<=k<=2n-1.at n=45A236934