6056940

Appears in sequences

• Nonpalindromic triangular numbers whose digit reversal is also a triangular number (possibly with fewer digits).at n=19A069673
• a(n) = ((n-th prime)^4-(n-th prime)^2)/2.at n=16A138418
• Let T(n) = n(n+1)/2 be the n-th triangular number (A000217); a(n) = T(8T(n)).at n=29A185096
• Triangular numbers that are the product of a triangular number and a square number (both greater than 1).at n=31A253650