A358207 - OEIS

%I #22 Dec 04 2022 16:33:14

%S 0,1,2,3,8,13,19,85,258,393,828,1811,2538,2916,2986,3627,4540,10503,

%T 140833,268865,298436,423437,902696,1050503,1845571,2491032,5513951,

%U 14365940,25809892,26237622,28559254,61875091,79094282,186062629,246553448,451977320,452357920,620208559,813448358,849937635

%N Numbers k such that k^2 + 2 is a palindrome.

%o (PARI) isok(k) = my(d=digits(k^2+2)); d == Vecrev(d); \\ _Michel Marcus_, Nov 04 2022

%Y Cf. A358237, A059100, A027719, A002778, A070253.

%K nonn,base

%O 1,3

%A _Robert Xiao_, Nov 04 2022