165025
domain: N
Appears in sequences
- Triangular numbers whose sum of squared digits is also triangular.at n=35A094890
- E.g.f.: ((1+x)/(1-x))^(1/3)*((1+x+x^2)/(1-x+x^2))^(1/6).at n=10A123014
- Right part of the square of the n-th Kaprekar number.at n=28A194219
- Triangular numbers T from A000217 such that (4*T+1)/13 is prime.at n=29A208294
- Lexicographically earliest sequence of nonnegative integers such that a(1)=3 and the sequence is p-periodic mod p for any p > 0.at n=26A284148