63190

Appears in sequences

• Triangular numbers whose digit permutations yield at least two further triangular numbers.at n=33A069674
• Row sums of triangle A093922.at n=25A093925
• Smallest triangular number whose decimal expansion ends (nontrivially) with the n-th triangular number.at n=18A229262
• a(n) = a(n-1) + a(n-2) + a([n/3]) + a([2n/3]), where a(0) = 1, a(1) = 1, a(2) = 1.at n=20A298344
• Number of cells in a regular 7-gon after n generations of mitosis.at n=42A349808
• Hexagonal numbers that are products of exactly four distinct primes.at n=29A381920