A138863 Concatenation of first two digits and last two digits of n-th Mersenne prime A000668(n).

33, 77, 3131, 1227, 8191, 1371, 5287, 2147, 2351, 6111, 1627, 1727, 6851, 5327, 1087, 1407, 4451, 2571, 1991, 2807, 4711, 3451, 2891, 4371, 4451, 4011, 8571, 5307, 5207, 5111, 7447, 1787, 1291, 4127, 8111, 6251, 1271, 4391, 9271, 1247, 2907, 1247, 3171, 1271, 2027, 1651, 3111

Offset

1,1

Links

Table of n, a(n) for n=1..47.

L. C. Noll, Mersenne Prime Digits.

Crossrefs

Cf. A000668, A080173, A104511, A138816, A138817, A138840, A138841, A138862, A138864, A138865, A138866.

Sequence in context: A246409 A378481 A211837 * A138866 A001987 A094846

Adjacent sequences: A138860 A138861 A138862 * A138864 A138865 A138866

Keyword

nonn,base

Author

Omar E. Pol, Apr 02 2008

Extensions

More terms from Jinyuan Wang, Mar 14 2020

Status

approved