364231

Appears in sequences

• Numbers k such that k and k^2 use only the digits 1, 2, 3, 4 and 6.at n=33A136969
• Fermat pseudoprimes n to base 3 for which sqrt(8*n + 1) is an integer.at n=27A217841
• Smallest triangular number whose decimal expansion ends (nontrivially) with the n-th triangular number.at n=20A229262
• Nonnegative numbers k not ending in 0 such that, in decimal representation, the subsequence of digits of k^2 occupying an odd position is equal to the digits of k.at n=31A362020
• Composite numbers k == 5, 7 (mod 12) such that 3^((k-1)/2) == -1 (mod k).at n=19A375918