3538080

Appears in sequences

• a(n) = Product_{i=2..n} sigma(i)/bigomega(i).at n=8A066987
• a(n) = floor(product of next n composite numbers / sum of next n composite numbers).at n=5A077144
• Group the triangular numbers so that the n-th group sum is a multiple of n. 1, (3, 6, 10, 15), (21), (28), (36, 45, 55, 66, 78), (91, 105, 120, 136, 153, 171, 190), ... Sequence contains the group sums.at n=31A114031
• (Sum of first n Fibonacci numbers) times (product of first n Fibonacci numbers).at n=7A191994
• Augmentation of the Fibonacci triangle A058071. See Comments.at n=37A193595