196878
domain: N
Appears in sequences
- T(2n+4,n), array T as in A055794.at n=17A055797
- Smallest triangular number with digit sum n (or 0 if no such number exists).at n=38A062688
- Duplicate of A062688.at n=39A067181
- Triangular numbers with strictly increasing sum of digits.at n=14A068808
- a(n) = A000217(A000041(n)).at n=20A086737
- Triangular numbers with strictly increasing product of digits.at n=28A246753