31835

Appears in sequences

• Number of series-reduced rooted trees with n nodes.at n=20A001679
• Number of ways to partition n elements into pie slices each with an odd number of elements allowing the pie to be turned over.at n=29A032277
• Number of ways to partition n elements into pie slices each with at least 2 elements allowing the pie to be turned over.at n=29A032278
• Erroneous version of A001679.at n=17A037163
• Molien series for group G_{1,2}^{8} of order 1536.at n=41A051462
• Number of homeomorphically irreducible rooted trees (also known as series-reduced rooted trees, or rooted trees without nodes of degree 2) with n >= 1 nodes.at n=20A059123
• Numbers k such that 2*k+1, 3*k+2, 4*k+3 and 5*k+4 are primes.at n=30A138700
• Number of (n+3) X 9 0..1 matrices with each 4 X 4 subblock idempotent.at n=16A224566
• Pandigitals in some base b (A061845) with an extra property: each number formed by the first i digits is divisible by i (digits in the pandigital base b) for 1 <= i <= b-1.at n=13A256112