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

1,1

Comments

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).

Links

Table of n, a(n) for n=1..30.

D. Knuth, List of first 36 pairs

Crossrefs

Cf. A262091, A262092, A264951, A264958.

Sequence in context: A304606 A264951 A264958 * A101335 A349092 A098215

Adjacent sequences: A262612 A262613 A262614 * A262616 A262617 A262618

Keyword

nonn,base

Author

Omar E. Pol, Nov 29 2015

Extensions

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

Status

approved