197472

Appears in sequences

• a(n) = n^2*(n^2 - 1)/6.at n=33A008911
• Pentagonal numbers (A000326) whose digit reversal is the product of 2 palindromes greater than 1.at n=26A115703
• Pentagonal numbers (A000326) that are the product of 2 palindromes greater than 1.at n=25A115745
• Number of arrangements of n indistinguishable balls in n boxes with the maximum number of balls in any box equal to n-3.at n=29A180293
• Number of positive integers with n digits whose digit sum is equal to its digit product.at n=32A297815
• Square array read by antidiagonals: the n-th row lists n-gonal numbers that are products of smaller n-gonal numbers.at n=39A374370
• Pentagonal numbers that are products of smaller pentagonal numbers.at n=5A374372