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A053461 a(0) = 0; a(n) = a(n-1)-n^2 if positive and new, otherwise a(n) = a(n-1)+n^2. 4
0, 1, 5, 14, 30, 55, 19, 68, 4, 85, 185, 64, 208, 39, 235, 10, 266, 555, 231, 592, 192, 633, 149, 678, 102, 727, 51, 780, 1564, 723, 1623, 662, 1686, 597, 1753, 528, 1824, 455, 1899, 378, 1978, 297, 2061, 212, 2148, 123, 2239, 4448, 2144, 4545 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

'Recamán transform' (see A005132) of the squares.

LINKS

Table of n, a(n) for n=0..49.

Nick Hobson, Python program for this sequence

Index entries for sequences related to Recamán's sequence

CROSSREFS

Cf. A076042 ('Easy Recamán transform' of the squares), A064365 ('Recamán transform' of the primes).

Sequence in context: A162208 A161698 A049791 * A136135 A231673 A211653

Adjacent sequences:  A053458 A053459 A053460 * A053462 A053463 A053464

KEYWORD

nonn,hear

AUTHOR

N. J. A. Sloane, Feb 09 2002

STATUS

approved

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Last modified July 14 05:39 EDT 2020. Contains 335716 sequences. (Running on oeis4.)