A309675 a(n) = 4^n^2 + n!.

2, 5, 258, 262150, 4294967320, 1125899906842744, 4722366482869645214416, 316912650057057350374175806384, 340282366920938463463374607431768251776, 5846006549323611672814739330865132078623730534784, 1606938044258990275541962092341162602522202993782792838930176

Offset

0,1

Links

Table of n, a(n) for n=0..10.

Andrew M. Kamal, New Field

Example

a(1) = 5 since 1^1=1, (4^1) + 1! = 5;
a(2) = 4^2^2 = 4^4 = 256, 256 + 2! = 256 + 2*1 = 258.

Crossrefs

Cf. A309669, A192366.

Sequence in context: A367673 A121270 A085603 * A042341 A300900 A016088

Adjacent sequences: A309672 A309673 A309674 * A309676 A309677 A309678

Keyword

nonn

Author

Andrew M. Kamal, Aug 11 2019

Status

approved