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A238903 Integers n such that (n^2+(n+1)^2) has no square proper substring. 0
0, 1, 3, 6, 11, 18, 36, 43, 56, 61, 106, 136, 168, 181, 206, 411, 431, 511, 518, 536, 606, 613, 1056, 1068, 1388, 1631, 1636, 1668, 1686, 1693, 1806, 1813, 1956, 1981, 2068, 2081, 3363, 3411, 3418, 3631, 3693, 3763, 4106, 4331, 5136, 5318, 5411, 5606, 5868, 6011, 6036, 6236, 6238, 6256, 6431, 6456, 6581, 10568, 10668, 10813, 11581, 11588, 11806, 11888 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

Inspired by (and program used from) A238334.

Note that (m^2+(m+1)^2), for m>0, always ends with 5. Any other patterns?

LINKS

Table of n, a(n) for n=1..64.

EXAMPLE

1^2 + 2^2 = 5, 3^2 + 4^2 = 25, 6^2 + 7^2 = 85.

CROSSREFS

Cf. A001844, A130448, A238334, A238335.

Sequence in context: A058053 A264923 A321381 * A271079 A091094 A116100

Adjacent sequences:  A238900 A238901 A238902 * A238904 A238905 A238906

KEYWORD

nonn,base

AUTHOR

Zak Seidov, Mar 07 2014

STATUS

approved

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Last modified June 15 17:43 EDT 2019. Contains 324142 sequences. (Running on oeis4.)