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A066623 Concatenation of squares in increasing order up to the n-th and then in decreasing order. 0
1, 141, 14941, 14916941, 149162516941, 1491625362516941, 14916253649362516941, 149162536496449362516941, 1491625364964816449362516941, 149162536496481100816449362516941 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..10.

CROSSREFS

Sequence in context: A172633 A221104 A202045 * A302331 A172738 A172814

Adjacent sequences:  A066620 A066621 A066622 * A066624 A066625 A066626

KEYWORD

easy,nonn,base

AUTHOR

Amarnath Murthy, Dec 25 2001

EXTENSIONS

More terms from Sascha Kurz, Mar 23 2002

STATUS

approved

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Last modified July 2 21:48 EDT 2022. Contains 355029 sequences. (Running on oeis4.)