132132
domain: N
Appears in sequences
- a(n) = 7*(n+1)*binomial(n+3,7).at n=6A027792
- a(n) = 28*(n+1)*binomial(n+3,8)/3.at n=5A027793
- Decimal expansion of a(n) is given by the first n terms of the periodic sequence with initial period 1,3,2.at n=5A037617
- Number of permutations of n letters where exactly 5 change position.at n=14A060836
- Permutations with exactly 10 fixed points.at n=5A129218
- Pronic numbers A002378 (AA) that can be divided into two equal strings (A).at n=0A161356
- Triangle T(n,k) = binomial(2*n-k, k)*binomial(n+k, 2*k), read by rows.at n=39A171822
- Triangle T(n,k) = binomial(2*n-k, k)*binomial(n+k, 2*k), read by rows.at n=41A171822
- Expansion of 2F1( 1/2, 3/2; 4; 16*x ).at n=6A186266
- Number of positive integer solutions to the Diophantine equation x + y + 2z = n^2.at n=26A218832
- Non-primitive words on {1,2,3}.at n=27A239018
- 4n concatenated with itself.at n=32A248365
- a(n) is the smallest number whose divisors include exactly n that can be written in the form m + reverse(m), for some m (A067030).at n=35A358513
- a(n) is the smallest k which has exactly n divisors d such that sigma(d) = sigma(d + k/d) where sigma = A000203.at n=4A392031