148149

Appears in sequences

• Kaprekar numbers: positive numbers n such that n = q+r and n^2 = q*10^m+r, for some m >= 1, q >= 0 and 0 <= r < 10^m, with n != 10^a, a >= 1.at n=25A006886
• Generalized Fibonacci numbers.at n=7A015453
• The full list of 6-Kaprekar numbers.at n=4A053397
• Another version of the Kaprekar numbers (A006886): n such that n = q+r and n^2 = q*10^m+r, for some m >= 1, q >= 0 and 0 <= r < 10^m, with n != 10^a, a >= 1 and n an m-digit number.at n=22A053816
• Triangular array read by rows: see Comments for definition.at n=27A121875
• a(n) = 3*a(n-1) + 6*a(n-2), n>2, a(0)=1, a(1)=1, a(2)=5.at n=9A154964
• Kaprekar numbers, allowing powers of 10: n such that n=q+r and n^2=q*10^m+r, for some m >= 1, q>=0 and 0<=r<10^m.at n=30A248353
• Kaprekar numbers that are the concatenation of two consecutive numbers.at n=4A381918
• Kaprekar numbers (A006886) that are divisible by the sum of their digits.at n=10A382165