A306952 Lesser member of twin weird numbers: weird numbers n (A006037) such that n+2 is also weird.

512468, 540890, 688028, 1390268, 1565828, 1741388, 2268068, 3525410, 3848108, 4374788, 6481508, 6657068, 7534868, 7885988, 7914410, 8089970, 8838968, 9143330, 9290468, 10021130, 10343828, 10898930, 12654530, 12801668, 12872510, 13152788, 13181210, 14234570

Offset

1,1

Comments

Number of terms below 10^k for k = 6, 7, ... 10: 19, 231, 2111, 22426.

The first occurrences of 2 consecutive pairs of twin weirds are (21607670, 21607672, 21608090, 21608092), (873951608, 873951610, 873951890, 873951892), ...

Links

Amiram Eldar, Table of n, a(n) for n = 1..22426 (terms below 10^10).

Example

512468 is in the sequence since both 512468 and 512470 are weird numbers.

Crossrefs

Cf. A006037, A125109, A231086 (supersequence), A231964.

Sequence in context: A205899 A068816 A233858 * A336060 A329461 A257424

Adjacent sequences: A306949 A306950 A306951 * A306953 A306954 A306955

Keyword

nonn

Author

Amiram Eldar, Mar 17 2019

Status

approved