A264958 -id:A264958 - cp's OEIS frontend

A262615 Amicable digital pairs: A262091 and A262092 interleaved.

136, 244, 919, 1459, 2178, 6514, 58618, 76438, 89883, 157596, 63804, 313625, 2755907, 6586433, 8139850, 9057586, 144839908, 1043820406, 277668893, 756738746, 304162700, 344050075, 4370652168, 11346057072, 21914086555935085, 37878721692554416, 187864919457180831, 375609204308055082, 13397885590701080090, 40091536165423401387

Offset: 1

Omar E. Pol, Nov 29 2015

A pair of numbers x and y are called amicable digital if, in decimal notation and with an appropriate number of leading zeros prepended, x = (x_m...x_1x_0){10}, y = (y_m...y_1y_0){10}, x = y_m^m + ... + y_1^m + y_0^m, and y = x_m^m + ... + x_1^m + x_0^m.

First differs from A264958 (another version) at a(9).

D. Knuth, List of first 36 pairs

Cf. A262091, A262092, A264951, A264958.

Suggested by Don Knuth, see the Links section and A262091.

A264951 Amicable digital numbers.

Original entry on oeis.org

136, 244, 919, 1459, 2178, 6514, 58618, 63804, 76438, 89883, 157596, 313625, 2755907, 6586433, 8139850, 9057586, 144839908, 277668893, 304162700, 344050075, 756738746, 1043820406, 4370652168, 11346057072, 21914086555935085, 37878721692554416, 187864919457180831, 375609204308055082, 13397885590701080090, 40091536165423401387

Offset: 1

Omar E. Pol, Nov 29 2015

Union of A262091 and A262092.
Numbers of A262615 in increasing order.
Numbers of A264958 in increasing order.
For amicable digital pairs see A262615 and also A264958.
First differs from A262615 at a(8).
First differs from A264958 at a(8).
For more information see A262091.

K. Oséki, A problem of number theory, Proceedings of the Japan Academy 36 (1960), 578-587.

Cf. A262091, A262092, A262615, A264958.

cp's OEIS Frontend

A262615 Amicable digital pairs: A262091 and A262092 interleaved.

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