106030

Appears in sequences

• Triangular numbers with every digit a triangular number.at n=18A062100
• Triangular numbers with sum of digits = 10.at n=37A068129
• Number of compositions of n into Fibonacci numbers (1 counted as single Fibonacci number).at n=19A076739
• Triangular numbers which are one more than a product of distinct triangular numbers.at n=33A083517
• Table read by rows: T(n,k) is the smallest triangular number that begins a run of exactly k consecutive triangular numbers with n divisors, or 0 if no such run exists.at n=21A319038
• a(n) is the smallest even number k such that the symmetric representation of sigma(k) has n parts.at n=7A320521
• Square array read by antidiagonals in which T(n,k) is the n-th even number j with the property that the symmetric representation of sigma(j) has k parts.at n=35A320537