A272683 - OEIS

A272683

Square root of concatenation of 1 and A265432(n).

35, 4, 105, 4, 35, 4465115625, 425, 35, 345, 10714375, 125, 435259453125, 14, 13, 12, 11, 109515625, 109556109375, 35, 4, 136875, 14133578125, 125, 1365, 425, 4, 375, 35, 1375, 34040625, 10642755859375, 3333202626953125, 351966828673004150390625, 11076674002613037109375, 35, 351172546875, 33875, 11, 12, 13

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,1

COMMENTS

The square of a(n) is one of the two squares that are required by the definition of A265432(n). The other is in A272682.

Of course if it ever happens that A265432(n) = -1, the definition will need to be changed.

LINKS

N. J. A. Sloane, Table of n, a(n) for n = 0..10000

N. J. A. Sloane, Table of n, A265432(n), sqrt(concat(n,A265432(n))), sqrt(concat(1,A265432(n))) (based on David W. Wilson 10000-term b-file for A265432)

CROSSREFS

Cf. A265432, A272682.

Sequence in context: A061045 A350805 A331040 * A366923 A037934 A329714

Adjacent sequences: A272680 A272681 A272682 * A272684 A272685 A272686

KEYWORD

nonn,base

AUTHOR

Nathan Fox, Brooke Logan, and N. J. A. Sloane, May 23 2016

STATUS

approved