A378925 -id:A378925 - cp's OEIS frontend

A378926 Positive numbers whose squares have at most two digits less than 9.

1, 2, 3, 4, 5, 6, 7, 8, 9, 13, 14, 17, 23, 27, 30, 31, 63, 77, 97, 173, 313

Offset: 1

Zhining Yang, Dec 11 2024

No terms > 313 with less than 16 digits.

No terms > 313 with less than 1040 digits. - Michael S. Branicky, Dec 11 2024

			313 is a term because 313^2 = 97969 has only two digits that are less than 9.

Cf. A053934, A360822, A378925, A378927.

Select[Range[10^6], Count[IntegerDigits[#^2], _?(#1 < 9 &)] < 3&]

A378927 Positive numbers whose squares have at most three digits less than 9.

Original entry on oeis.org

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 33, 36, 37, 43, 44, 47, 53, 54, 57, 63, 64, 67, 70, 73, 77, 83, 86, 87, 89, 93, 95, 96, 97, 98, 99, 114, 173, 187, 223, 243, 263, 264, 303, 307, 313, 314, 315, 316, 437, 447, 547, 707, 964, 997, 1414, 2236, 2827, 3033, 3114, 3148, 3161

Offset: 1

Zhining Yang, Dec 11 2024

No terms > 3161 with less than 16 digits.

No terms > 3161 with less than 101 digits. - Michael S. Branicky, Dec 11 2024

			3161 is a term because 3161^2 = 9991921 has only three digits that are less than 9.

Cf. A053934, A360822, A378925, A378926.

Select[Range[10^6], Count[IntegerDigits[#^2], _?(#1 < 9 &)] < 4 &]

cp's OEIS Frontend

A378926 Positive numbers whose squares have at most two digits less than 9.

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