887778
domain: N
Appears in sequences
- Degrees of irreducible representations of Janko group J4.at n=5A003907
- Degrees of irreducible representations of Janko group J4.at n=6A003907
- Smallest triangular number with digit sum n (or 0 if no such number exists).at n=44A062688
- Triangular numbers that contain exactly 2 different digits.at n=29A062691
- Duplicate of A062688.at n=45A067181
- First triangular number with digit sum = n-th triangular number.at n=9A068133
- Triangular numbers in which neighboring digits differ at most by 1. Allowed neighbors of 9 are 0, 8 and 9.at n=24A068149
- Triangular numbers with strictly increasing sum of digits.at n=16A068808
- Smallest n-digit triangular number with maximum digit sum.at n=5A069669
- Triangular numbers composed of digits {0,7,8}.at n=3A119093
- Triangular numbers composed of digits {1,7,8}.at n=6A119146
- Triangular numbers composed of digits {2,7,8}.at n=6A119178
- Triangular numbers composed of digits {3,7,8}.at n=4A119200
- Triangular numbers composed of digits {4,7,8}.at n=3A119216
- Triangular numbers composed of digits {5,7,8}.at n=6A119224
- Triangular numbers composed of digits {6,7,8}.at n=7A119230
- Triangular numbers composed of digits {7,8,9}.at n=2A119236
- Triangular numbers having only 1 or 2 different digits in base 10.at n=36A213516
- Triangular numbers with strictly increasing product of digits.at n=36A246753
- a(n) = (8*10^(2n) - 10^(n+1) + 2) / 9.at n=2A383942