468996
domain: N
Appears in sequences
- a(n) = n*(n^2 - 1)*(n + 2)*(n^2 + 4*n + 6)/72.at n=17A054563
- Smallest triangular number with digit sum n (or 0 if no such number exists).at n=41A062688
- Duplicate of A062688.at n=42A067181
- Triangular numbers with strictly increasing sum of digits.at n=15A068808
- Eighth column (m=7) of (1,4)-Pascal triangle A095666.at n=16A095670
- First n-fold perfect number divided by 30240, or 0 if the quotient is not an integer.at n=4A227767
- First (n+1)-fold perfect number divided by first n-fold perfect number, or 0 if the quotient is not an integer.at n=3A227769
- Triangular numbers with strictly increasing product of digits.at n=33A246753
- a(n) = n^2*(2*n^2 + (-1)^n).at n=22A275496