148190domain: NAppears in sequencesa(n) = 1225*n^2 - 35.at n=10A158735a(n) is the smallest number which can be represented as the sum of four distinct nonzero n-gonal numbers in exactly n ways, or -1 if no such number exists.at n=35A374274Products of 5 distinct primes that are sandwiched between sphenic numbers.at n=25A376929