340725

Appears in sequences

• Triangular numbers which remain triangular when the most significant digit is moved to the end.at n=17A067269
• Largest denominator used in the Egyptian fraction representation of 1-1/(2n+1) by the odd greedy expansion algorithm, without repeats.at n=4A287434
• Largest denominator used in the Egyptian fraction representation of 1-1/(2n+1) by the odd greedy expansion algorithm, without repeats.at n=11A287434
• Locations of records in A365196.at n=15A365239