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A303741 Numbers n such that A(n+1) = A(n) + 2, where A() = A005101() are the abundant numbers. 4
2, 7, 10, 14, 16, 19, 22, 23, 26, 31, 36, 39, 44, 45, 48, 51, 52, 59, 62, 65, 70, 71, 74, 79, 81, 82, 83, 86, 87, 90, 93, 96, 99, 104, 107, 110, 111, 114, 118, 120, 125, 128, 131, 133, 135, 138, 141, 146, 149, 150, 155, 156, 158, 164, 169, 170, 175, 178, 179 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Muniru A Asiru, Table of n, a(n) for n = 1..5000

FORMULA

Sequence is { n | A005101(n+1) = A005101(n) + 2 }.

MAPLE

with(numtheory): A:=select(n->sigma(n)>2*n, [$1..1000]):  a:=select(j->A[j+1]=A[j]+2, [$1..nops(A)-1]);

PROG

(GAP) A:=Filtered([1..1000], n->Sigma(n)>2*n);;  a:=Filtered([1..Length(A)-1], i->A[i+1]=A[i]+2);

CROSSREFS

A231086 is the main entry for this sequence.

Cf. A005101, A096399, A169822.

Sequence in context: A297832 A003158 A130336 * A085303 A304799 A022886

Adjacent sequences:  A303738 A303739 A303740 * A303742 A303743 A303744

KEYWORD

nonn

AUTHOR

Muniru A Asiru, Jun 22 2018

STATUS

approved

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Last modified July 19 10:45 EDT 2019. Contains 325155 sequences. (Running on oeis4.)