240100
domain: N
Appears in sequences
- Squares of partition numbers.at n=19A001255
- Numbers of form 7^i*10^j, with i, j >= 0.at n=23A025632
- Numbers divisible by the 4th power of the sum of their digits in base 10.at n=20A072083
- Solutions to mod(sigma(x), 6) = 5.at n=11A074384
- k^2 is a term if k^2 + (k-1)^2 and k^2 + (k+1)^2 are primes.at n=18A075577
- Number of nondecreasing integer sequences of length 38 with sum zero and sum of absolute values 2n.at n=18A158172
- Number of nondecreasing integer sequences of length 39 with sum zero and sum of absolute values 2n.at n=18A158173
- Number of nondecreasing integer sequences of length 40 with sum zero and sum of absolute values 2n.at n=18A158174
- Number of nondecreasing integer sequences of length 41 with sum zero and sum of absolute values 2n.at n=18A158175
- Number of nondecreasing integer sequences of length 42 with sum zero and sum of absolute values 2n.at n=18A158176
- Number of nondecreasing integer sequences of length 43 with sum zero and sum of absolute values 2n.at n=18A158177
- Number of nondecreasing integer sequences of length 44 with sum zero and sum of absolute values 2n.at n=18A158178
- Number of nondecreasing integer sequences of length 45 with sum zero and sum of absolute values 2n.at n=18A158179
- Number of nondecreasing integer sequences of length 46 with sum zero and sum of absolute values 2n.at n=18A158180
- Number of nondecreasing integer sequences of length 47 with sum zero and sum of absolute values 2n.at n=18A158181
- Number of nondecreasing integer sequences of length 48 with sum zero and sum of absolute values 2n.at n=18A158182
- Number of nondecreasing integer sequences of length 49 with sum zero and sum of absolute values 2n.at n=18A158183
- Number of nondecreasing integer sequences of length 50 with sum zero and sum of absolute values 2n.at n=18A158184
- a(1) = 1, then partial products of Product_{n>=1} (p(n)/p(n-1)*p(n)/p(n-1)) = 1*1*1*(2)*(2)*(3/2)*(3/2)*(5/3)*(5/3)*(7/5)*(7/5)*...*; p = partition numbers, A000041 starting (1, 2, 3, 5, ...).at n=38A171646
- Triangle read by rows: T(n,m) = (binomial(n - 1, m - 1)*binomial(n, m - 1)/m)^2.at n=31A174158