44838domain: NAppears in sequencesTruncated square pyramid numbers: a(n) = Sum_{k = n..2*n-1} k^2.at n=27A050410p-INVERT of the squares, where p(S) = 1 - S - S^2.at n=7A289779Numbers k such that 6*10^k - 91 is prime.at n=24A294945Stirling transform of odd primes.at n=7A353406