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A277015 Numbers whose squares are present in A276573 (the infinite trunk of least squares beanstalk). 8
0, 4, 8, 12, 16, 19, 20, 24, 36, 40, 45, 48, 56, 60, 68, 72, 80, 83, 84, 92, 96, 104, 109, 112, 120, 124, 132, 136, 140, 144, 147, 148, 156, 160, 164, 168, 173, 176, 180, 192, 204, 208, 211, 216, 220, 224, 228, 232, 237, 240, 252, 264, 272, 275, 276, 280, 284 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

Indexing starts from zero because a(0)=0 is a special case in this sequence.

LINKS

Antti Karttunen, Table of n, a(n) for n = 0..130

FORMULA

a(n) = A000196(A277016(n)) = A000196(A276573(A277014(n))).

PROG

(Scheme) (define (A277015 n) (A000196 (A277016 n)))

CROSSREFS

Cf. A000196, A002828, A276573, A277014, A277016 (the corresponding squares), A277025 (multiples of four present / 4).

Positions of squares in A277023, zeros in A277024.

Sequence in context: A113645 A311120 A311121 * A311122 A190714 A311123

Adjacent sequences:  A277012 A277013 A277014 * A277016 A277017 A277018

KEYWORD

nonn

AUTHOR

Antti Karttunen, Oct 03 2016

STATUS

approved

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Last modified April 14 07:59 EDT 2021. Contains 342946 sequences. (Running on oeis4.)