40056

Appears in sequences

• Powers of cube root of 18 rounded to nearest integer.at n=11A018028
• Powers of cube root of 18 rounded up.at n=11A018029
• Least k such that A052343(k)=n.at n=12A052345
• Smallest number which is the sum of two positive triangular numbers in exactly n different ways.at n=12A052346
• Indices of A052343 (ways to write n as sum of two triangular numbers) where record values are reached.at n=9A052348
• Indices of A052344 (ways to write n as sum of two nonzero triangular numbers) where record values are reached.at n=9A053587
• Smallest number which is the sum of two positive triangular numbers (A000217) in at least n ways.at n=10A234004
• Smallest number which is the sum of two positive triangular numbers (A000217) in at least n ways.at n=11A234004
• Smallest number that can be written in exactly n ways as sum of two quarter-squares.at n=24A240952
• a(n) is the smallest nonnegative integer that can be written as a sum of two distinct nonzero triangular numbers in exactly n ways or -1 if no such integer exists.at n=12A342326